Avril Lavigne Dressed Like 14-Year-Old To Her Albums Release Party

I think Avril Lavigne's forgotten how old she is because the ?26-year-old divorced musician showed up to her new album 'Goodbye Lullaby' release party in a get-up meant to be worn by a middle schooler.

It looks like she's trying too hard, it's ridiculous!

Avril is currently dating Brody Jenner, Kim Kardashian's stepbrother. She was previously married to Sum 41 singer Deryck Whibley but the two divorced in 2010.  This is Avril's latest album to be released in the last 4 years.

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Wilmer Valderrama & Demi Lovato Dating?

There were rumors of these two hooking up before Demi Lovato entered rehab a few months away but Wilmer Valderrama's reps squashed that.

Now that 18 year old Demi out of rehab the rumors are back. News reports (via MTV) state that she and 31 year old Wilmer were spotted on a movie date at Shermann Oaks Galleria's Arclight Cinemas in Los Angeles and were also seen at Whole Foods.

It really wouldn't surprise me if this rumor was true considering Wilmer has a long list of lovely starlets on his "ex" list. He's been known to have dated bad girl Lindsay Lohan, rocker Avril Lavigne, lame-o Ashlee Simpson, cutie Mandy Moore, hottie Mila Kunis and Jennifer Love Hewitt.

Avril Lavigne: Out With Her Ex

Stepping out for a fun-filled evening, Avril Lavigne was spotted at the �Alice In Wonderland� premiere after party in London last night (February 25).

Curiously enough, the �Sk8er Boi� songstress was accompanied by her ex-husband Deryck Whibley despite reports that they�d both moved on.

Furthermore, both Avril and Deryck wore massive smiles on their faces as they hopped into the same chauffeured car at the end of the night.

Ms. Lavigne looked absolutely fabulous in a cleavage-baring little black dress, while Deryck sported a dark suit and tie.

Avril Lavigne and Deryck Whibley have spilt

Singer Avil Lavigne supposedly asked her husband of two years, Deryck Whibley to move out of their Los Angeles mansion and called quits on their relationship.

“She dumped him and told him she was leaving him," a source told Us Weekly Magazine. "She wants to move on. Divorce papers will be filed any day now.”

Sum 41 rocker Deryck is apparently “crushed” by Avril’s decision, and wanted to work through their problems.

Avril, 24, is so determined to move on from the relationship she has decided to ditch the tracks from her forthcoming album which she worked on with Deryck.

“She is going to do new songs that don't have his mark on them," a friend told the magazine. "She wants no trace of him.”

Rumors about their marital problems have been circulating for months, with Avril often seen partying with friends without her husband.

In June, Deryck went to the Los Angeles premiere of 'Transformers: Revenge of the Fallen' alone, while Avril spent a week in Saint-Tropez with pals.

Deryck, 29, was not present at New York Fashion Week on Monday (9-14-09) when Avril revealed her clothing line.

Deryck’s representative did not comment on the report and Avril’s could not be reache

Avril Lavigne - Z100's Jingle Ball 2007 - Show, New York City