In a new interview with ABC’s Nightline News, the “Heart Attack” singer opens up about her split with Joe Jonas in 2010.

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“We were in a relationship and we broke up, and at one point, I was really mad at him,” Demi explained.

Even now, thee years later, she still sometimes struggles with those emotions. “When you go through heartbreaks and things like that, you always have in mind somebody,” she said. “It’s like when you hear a song on the radio that reminds you of somebody, you’re going to be reminded. But keeping that in mind … it’s a delicate balance.”

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But time has healed some wounds and now, Demi and Joe share a different kind of relationship: a tight friendship.

“Now, I can, fortunately, say, that him and his brother Nick, have always been there for me, and are literally family, and like brothers,” revealed Demi. “We have a great friendship. And we may not be as close as we used to be, but that’s OK.”

On Wednesday, the “Heart Attack” singer showed off a brand new tattoo in honor of her song, “Warrior.”

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The ink, which is on her left shoulder, is a lyric from the song: “Now I’m a warrior.”

Demi told On Air with Ryan Seacrest on Tuesday that “Warrior” was one of the most personal off her new album.

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“I wrote it about something that I had never really talked about before and I’m pretty open with my story, but the lyrics kind of say it all it in that song … It was really emotional and hard for me to write that song because I was so vulnerable and was so raw with the lyrics. And just when you’re in the recording booth and you’re singing a very vulnerable song, there were tears. It was intense, and it’s heavy. When I play it for people I almost feel like I’m naked in a way, like I don’t want to be in the room when people listen to it.”

What do you think of Demi’s new tattoo?

We’ve rounded up our favorite Demi GIFs to celebrate her journey and all her accomplishments … plus, her amazing hair.

Now, let us count all the ways we’ve fallen in love with the “Heart Attack” singer.

1. She once called Simon Cowell an “old fart.”

2. She’s adorable when she laughs.

3. And looks amazing with blonde hair.

4. But she’s also beautiful on the inside!

5. We could easily be BFFs with her.

6. She cares.

7. She doesn’t take herself too seriously.

8. She’s not afraid to cry.

9. And we mean really cry.

10. But it’s because she believes in being open and honest.

11. She not afraid of her haters.

12. Now look how fierce she is!

15. But she’ll always be our Sonny.

16. Her music is raw and emotive.

17. She seriously loves her fans.

18. And also this monkey.

19. That monkey, right?

20. Do we need any other reasons?

Demi Lovato‘s latest album Demi dropped today and the 20-year-old songstress phoned in to On Air with Ryan Seacrest to talk her excitement and revealed which songs are the most personal to her.

The “Heart Attack” singer decided to name her fourth studio album Demi because she’s “never had a self titled album … I feel like this album represents me the best that any album has ever represented me.”

The newly-blond singer continued: “I’m starting a new chapter and a new world in my career coming out in radio songs and more of the mainstream world and some people are hearing me for the first time and I want them to see this is who I am and this is my music and this is what I’m all about.”

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And Demi didn’t hold back on letting people know who she is and what she’s about with tracks like “Warrior.” In fact, she revealed: “In this song, I wrote it about something that I had never really talked about before and I’m pretty open with my story but the lyrics kind of say it all it in that song.”

“It was really emotional and hard for me to write that song because I was so vulnerable and was so raw with the lyrics. And just when you’re in the recording booth and you’re singing a very vulnerable song, there were tears. It was intense, and it’s heavy. When I play it for people I almost feel like I’m naked in a way, like I don’t want to be in the room when people listen to it.”

Demi Lovato Talks Other Tracks On Her New Album

And this isn’t the first track Demi says makes her feel uneasy. “I released another song awhile ago called ‘For the Love of A Daughter’ and that one is a pretty heavy song, as well, and I’ve never performed that live, so I don’t know if I’ll even perform this one live, but it depends on how comfortable I feel when I go on tour.”

Where Demi did feel comfortable was on stage at Wango Tango last weekend. “It felt amazing, even just being a part of Wango Tango felt awesome,” she says. “Obviously, I’ve never played and I was super excited. I love performing in front of huge crowds like that. It’s such a great feeling.”

Watch the Music Video for ‘Heart Attack’ Here!

Another great feeling? The Demi and Taylor Swift mashup that made it’s way onto the Internet last month. So has Demi heard the tune?

“Yeah isn’t that awesome? I heard that and I was like, ‘isn’t that awesome?!’”

Download your copy of Demi on iTunes here!

Known for being candid with her personal life and past struggles, Demi reveals “Warrior” is the most personal song on the record.

However, she adds, “Nightingale” has a special place in her heart as well, sharing: “[I] love it because it’s really beautiful, I recorded this song in the dark, [and] sang it all the way through.”

Demi Lovato Rocks Wango Tango

Demi also adds: “When I was in the studio, I had my foot in a cast and I was getting so into the songs that I’d tap my foot to the beat and then it would hurt. I’d be in pain!”

Download your copy of Demi on iTunes here!

In case you missed it, here are the top five stories that made headlines since Friday:

1. Ouch! Kanye West walked head-first into a “Warning” sign on Friday in Beverly Hills while strolling around with pregnant girlfriend, Kim Kardashian (see video here). The next day, he was seen with a large bruise on his forehead … and a frown on his face.

2. On Saturday, some of the biggest hitmakers on the radio — Demi Lovato, Avril Lavigne, Bruno Mars, Maroon 5, and so many more! — rocked Wango Tango at the Home Depot Center in Carson, California. For photos and videos, as well as exclusive backstage interviews, check them all out here.

3. Kristen Wiig returned to Saturday Night Live a year after leaving the show, but this time as host. As expected, the Bridesmaids comedian got big laughs with her memorable characters, including The Lawrence Welk Show singer who has baby arms and the Target Lady. Check out her best sketches on Hulu.com.

4. In other SNL news, it was announced on Sunday that Seth Meyers will replace Jimmy Fallon on Late Night once Fallon takes over for Jay Leno on The Tonight Show. “12:30 on NBC has long been incredible real estate,” Meyers said in a statement. “I hope I can do it justice.” According to The New York Times, Meyers will continue to appear on SNL until he takes over Late Night in Spring 2014.

5. Also on Saturday night, Katy Perry joined the Rolling Stones onstage at their Las Vegas concert to perform the legends’ classic, “Beast of Burden.” How did she do?

But after rumors spread she and fellow former Barney & Friends co-star Selena Gomez were on the rocks, would Selena be one of those friends texting her congrats?

Demi Lovato Gives Sneak Peek of Upcoming Demi Album: Listen

According to Demi, of course!

“We grew up together … Nowadays we’re both super busy, but I know she will always be there for me,” explains the “Heart Attack” singer.

Speaking of Selena, watch her video for “Come & Get It” here!

The singer has released all 13 tracks from her upcoming Demi album on her Vevo page before it comes out next Tuesday.

And of course, it’s really great … especially “Made in the U.S.A.,” “Shouldn’t Come Back,” and “Warrior.”

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Since giving a sneak peek at the songs, Demi has been receiving rave reviews from her fans on Twitter, and she has been responding to their messages.

Thank you!!!! RT @lovatovesque: @ddlovato your album has been on reply since 1pm its now 5:42am…

— demetria lovato (@ddlovato) May 7, 2013

“You guys have been incredible today,” she tweeted on Monday evening. “I’m overwhelmed.” In a follow-up, she added, “So many incredible fans… Thank you SO much… I’m so thankful for each and every one of you. I love you all!!”

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Demi had been giving fans hints at the lyrics for weeks on her Twitter page. “Can you be my nightingale?” tweeted last month. In another post, she wrote, “So even if I lose it all, I’ve got so much left to give. I won’t give up. My heart’s on the frontline I’m NOT afraid …”

Listen to all of Demi below:

The X Factor judge shared that she doesn’t have “loads of friends,” but that she’s staying close to those who care about her.

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“Now I have people who, if I break my leg in the middle of the night, they’ll come to the hospital with me,” explains the 20-year-old pop singer. “Or they’ll answer the phone at 4 a.m. if I need them. Most of my friends are not in the industry. I don’t like that lifestyle, the paparazzi, going to Hollywood places. I stick to my neighborhood and to my closest friendships.”

But Demi is definitely keeping busy! It was recently announced that she’s returning to X Factor for a second season, and she talked to the magazine about fellow judge Simon Cowell. ”He’s a grump. An old fart. But he has a heart that nobody gets to see,” she said.

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From X Factor to having her hit single, “Heart Attack,” recently turn platinum, the cover girl definitely looks fantastic in the London magazine. Check out the behind-the-scenes photos!