Avril's Ex-Husband, Sum 41's Deryck Whibley, Has 'Lavigne' Removed From His Legal Name | HuffPost

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Avril Lavigne's Ex, Sum 41's Deryck Whibley, Finally DropsLast Name

Jason MacNeil— HuffPost Canada Music

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(EXCLUSIVE, Premium Rates Apply) LAS VEGAS - NOVEMBER 10: Singers Avril Lavigne and Deryck Whibley attend the Maroon 5 concert in the VIP Sky Lounge at The Pearl at The Palms Casino Resort on November 10, 2007 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)

Sum 41 singer Deryck Whibley severed ties with ex-wife Avril Lavigne in 2010. Now he's severing a part of his name as well.

TMZ reports the singer filed documents in a Los Angeles County Court to change him name back to Deryck Jason Whibley from what it current is: Deryck Jason Lavigne Whibley. It appears few, if anybody, knew Whibley took Avril's surname when they married in 2006. The couple would later officially finalize their divorce in November, 2010.

There's no word as to why now was the right time to make the official change.

Earlier this year, Whibley made headlines for appearing at a Tom Petty concert in Los Angeles and surprised many with his rather bloated appearance.

Sum 41 is currently off the road after wrapping up touring behind 2011's Screaming Bloody Murder but Whibley has stated the group is working on a new studio album. The band nixed shows earlier this year reportedly due to Whibley's recurring back problems following an attack in Japan. In April, original drummer Steve Jocz announced he had left the band.

As is well documented, Lavigne has since hooked up with Nickelback singer/guitarist Chad Kroeger. The duo became engaged and were married earlier this summer. Whibley had some fun at the duo's expense in 2012 when he and his girlfriend dressed up as Lavigne and Kroeger for Halloween. Kroeger was quick to reply to Whibley's stunt.

Lavigne released her new self-titled studio album earlier this month.

Celebs Who Dissed Their Exes

Sophia Bush dissed Chad Michael Murray(01 of20)

Bush talked about her ex-husband and co-star Murray on "Watch What Happens Live," admitting that she hasn't talked to him in a long time. "My mother once said to me, that if you don’t have anything nice to say, not to say anything at all," she told Andy Cohen, explaining that it wasn't necessarily easy to continue filming scenes with him for "One Tree Hill" after their brief five-month marriage. "At the end of the day, we're grown ups and I actually think what's interesting about it is when people split in a way that's unpleasant, they usually just go on, quite literally, hating each other or the person in my situation hates the other person, whatever," she said. "But when you have to work with somebody for another half a decade, you kind of have to deal with it." (credit:Getty)

Russell Brand dissed Katy Perry(02 of20)

Joking or not, Brand's comments about his sex life with Perry were enough to set us off. "When you’re a monk, you’re not allowed to have sex with anyone. When you’re married, it’s one person. That’s one more than a monk. It’s not that different. I’d be having sex thinking, ‘Think of anyone, anyone else.'" (credit:Getty)

Rita Ora dissed Rob Kardashian(03 of20)

We all know that Kardashian took the breakup hard, but Ora wasn't afraid to dish it out to him. In a tweet that has since been deleted, she said "Rob's d*** was wack, I had to get it somewhere else." (credit:Getty)

Olivia Wilde dissed Tao Ruspoli(04 of20)

At a New York event, Wilde had this to say of her ex-husband, "I felt like my vagina died. It just turned off. Lights out." Ouch. (credit:Getty)

Charlie Sheen dissed Denise Richards(05 of20)

The two have had a relationship nothing short of complicated, and at the height of their feuding, Sheen was nasty. He was known for his angry rants via text message, one of them being, "Rot in hell." (credit:Getty)

Kevin Hart dissed Torrei Hart(06 of20)

Kevin Hart is known for being the funny man, and when it comes to his divorce, that's no different. The star claims he is always happier than his ex-wife, and he also said that he had a "good year" because he was finally divorced. (credit:Getty)

Ben Affleck dissed Jennifer Lopez(07 of20)

Affleck dissed his ex Lopez, when he told Britain's Now magazine the he "felt suffocated, miserable and gross" during their relationship. (credit:Getty Images)

Oksana Grigorieva dissed Mel Gibson(08 of20)

While this might not measure up in comparison to the things Gibson has said, Grigorieva has called him a "rich bully." (credit:Getty)

Linda Hogan dissed Hulk Hogan(09 of20)

In her tell-all book,"Wrestling The Hulk: My Life Against the Ropes," Linda delves deep into some of the couple's darker times. Among other things, she names him as a pathological liar and narcissist. She also claimed there was serious physical abuse throughout their marriage. (credit:Getty)

Peter Cook dissed Christie Brinkley(10 of20)

Brinkley and ex-husband Cook have had a messy relationship, even after their divorce. Among many other things, Cook has called her a "narcissistic egomaniac" and a liar. (credit:Getty)

Taylor Swift dissed ... well, all of her exes(11 of20)

Swift has dissed pretty much every one of her exes in her songs -- and made plenty of money doing it. (credit:AP)

Lindsay Lohan dissed Samantha Ronson(12 of20)

Lohan and Ronson had a very public breakup that played out on Twitter. In 2009, Lohan dissed Ronson when she tweeted, "I was right all along. Cheat...Being cheated on does wonders for you." Ronson later called Lohan a "very angry human being." (credit:AP)

Tommy Mottola dissed Mariah Carey(13 of20)

In Mottola's recent memoir "Hitmaker," he gave himself credit for his ex-wife's success. "If it seemed like I was controlling, I apologize," he wrote in his book, which was released in January 2013. "Was I obsessive? Yes. But that was also part of the reason for her success." (credit:Getty)

Brad Pitt dissed Jennifer Aniston(14 of20)

In a 2011 interview with Parade magazine, Pitt dissed Aniston when he said that while they were married he "wasn't living an interesting life," and said he was "trying to pretend the marriage was something that it wasn't."Pitt later said his words were taken out of context, and that it was his career at the time that was the issue, but we're not sure that made Jen feel any better. (credit:Getty Images)

Justin Timberlake dissed Britney Spears(15 of20)

Timberlake dissed Spears with the song "Cry Me a River." He cast a Spears look-alike for the video and sang "I already know/ I found out from him/Now there's just no chance/ For you and me, there'll never be" and later, "Your bridges were burned and now it's your turn/To cry, cry me a river." The song didn't help discredit rumors that pop's golden couple split because Britney cheated with backup dancer and choreographer Wade Robson. (credit:Getty Images)

Jennifer Lopez dissed Marc Anthony(16 of20)

After Lopez announced she was splitting from Anthony, she revealed to Vanity Fair that he didn't treat her very well: "To understand that a person is not good for you, or that that person is not treating you in the right way, or that he is not doing the right thing for himself -- if I stay, then I am not doing the right thing for me," she told the magazine. (credit:AP)

Jesse James dissed Sanda Bullock(17 of20)

We don't understand why Bullock ever married James in the first place and we have no idea where he gets off dissing her. In an interview with Howard Stern, James was asked who was better in bed, his ex-wife or then-fiancé, Kat Von D. James revealed that his pick was Von D, telling Stern, "That one's an easy no-brainer. 100 percent! She's a vixen, man. I love her."Later, he dissed Bullock again when he referred to his ex as "some Hollywood actress." (credit:AP)

John Mayer dissed Jennifer Aniston(18 of20)

Mayer totally dissed Aniston when he responded to rumors that she dumped him because he was tweeting too much. "That wasn't it, but that was a big difference," he told Playboy in 2010. "The brunt of her success came before TMZ and Twitter. I think she's still hoping it goes back to 1998." (credit:AP)

Madonna dissed Guy Ritchie(19 of20)

Madonna dissed ex-husband Ritchie when she dedicated the song "Miles Away" to the "emotionally retarded" during the Boston stop of her "Sticky and Sweet" tour. "Maybe you know some people who fall into that category. God knows I do," she told the audience. Ritchie responded to the jab, telling Esquire, "she's retarded too!" (credit:Getty Images)

Sean Penn dissed Robin Wright(20 of20)

Penn dissed his wife of 14 years when he told Vanity Fair she was like a ghost to him. He dissed her again, when he told Esquire:“There is no shame in saying that we all want to be loved by someone. As I look back over my life in romance, I don’t feel I’ve ever had that. I have been the only one that was unaware of the fraud in a few of these circumstances blindly." (credit:Getty Images)

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