Taylor Momsen attended the JustFabulous launch of Abbey Dawn by Avril Lavigne at the Viper Room on Tuesday night, and despite the heavy makeup and goth/biker-inspired attire, the former Gossip Girl starlet was in a great mood! Sigh ... whatever happened to Little J?

Avril performed a few songs at the bash, and later she tweeted, "Thanks also to @CoryMonteith for coming to the show tonight and supporting. ;) my Canadian Boi!!!!!! Rock it. And thanks to @officialkimora she was super DOPE and rocking my Abbey Dawn shoes :) and thanks to @LA_Reid for coming also xoxoxo."

While Avril is notorious for her naughty antics with photographers, it looks like she's on her best behavior these days. Funny how that coincides with her promoting something...

Click thru to see who else showed up to the event!

Taylor Momsen is ditching the hardcore makeup and focusing on her incredible voice in the latest music video for "You."

The former Gossip Girl star, showing off her softer side in only a white vest and black panties, is seen getting romantic with a lover.

When asked about her sexy style, Momsen told FHM:

"I love stripper shoes and I always try to find the tallest ones. I’m always surprised no one talks about my shoes. I’m, like, on stage in 15-inch heels but people talk more about my eye make-up, which has stayed the same forever."

Yep, the raccoon eye-liner is pretty much Taylor's staple. But it's great to see the 18-year-old rocker showing that she's versatile.

Taylor Momsen covers the new issue of FHM, but she's barely covered herself! However, given some of the stuff she's worn onstage in the past, we're not exactly shocked with these poses -- and she is 18 now, so it's not that big of a deal, right?

In addition to shooting some scandalicious photos, Taylor reveals that she's a bit of a head case. "I'm completely neurotic, totally anxious and high-strung all the time," she says. "I sleep for about four hours a night, or day, really. I go to bed at 9am, sleep for four hours, then get up and start the day again ... To be honest, I don't know what to do when I'm not working. I lose my mind if I'm not constantly doing something."

Taylor also dished on her signature style, telling the mag, "I love stripper shoes and I always try to find the tallest ones. I'm always surprised no one talks about my shoes. I'm, like, on stage in 15-inch heels but people talk more about my eye make-up, which has stayed the same forever. I always think that's funny. I got into heels when I was little, though. My mom's really short so she always wears really tall heels and I used to steal them and now it's just a part of my everyday life."

Sigh. Whatever happened to Little J?!

Taylor Momsen will have to be content with troublemaking off screen, apparently.

The actress and her co-star Jessica Szohr will no longer star on the CW's Gossip Girl, TVLine reports.

Momsen played Jenny and Szohr played Vanessa. Momsen had made it quite clear in past interviews that she wants to focus on her music (the 17-year-old fronts The Pretty Reckless) and her on-set antics have made headlines. Tim Gunn guest starred on the show in November and called Momsen a "diva" and "a brat."

Gossip Girl is coming up on its fifth season. The show's core cast -- Blake Lively (Serena), Leighton Meester (Blair), Penn Badgley (Dan), Ed Westwick (Chuck) and Chace Crawford (Nate) -- will all be back in the fall.

In addition - one star will be promoted to series regular status and become a main character on the show. See who after the jump!

At least she's always nice enough to wave to her fans!

Former Gossip Girl starlet turned gothic pop tart Taylor Momsen put on her most demure outfit while touring Paris on Friday - the Pretty Reckless singer performed a showcase at the Fnac Champs-Elysees last night.

In a recent interview with PopEater, Taylor insisted that "music needs danger, it needs that risk."

She also says the following about her controversial image: "I don't have control over what people are going to write and it's always going to be part of it. But fashion, music... it all comes together. Tabloids are going to focus on my shoes and not my music, that's just what they do."

Check out a short vid of Taylor being interviewed below the jump!

Courtney Love 2.0!

Taylor Momsen was surprisingly super-friendly in Paris today, waving hello to photogs and shaking hands with fans. Someone's in a good mood! Maybe because the former Gossip Girl star is reportedly being considered for a judging spot on X-Factor.

The Pretty Reckless singer and her band will play at the Download Festival in England in June.

Yesterday Simon Cowell announced that record exec/producer L.A. Reid will be joining him at the judges table when X Factor premieres this fall, but now a new report claims that one of the other seats will be filled by none other than controversial Pretty Reckless singer/ex-Gossip Girl star Taylor Momsen!

Apparently producers of the hit Brit show think Momsen are attracted to Momsen's "young, hip and edgy” sensibilities, and told Celebuzz they think she'd be perfect for the show.

But Momsen just left her lucrative role on television in order to concentrate on making music and touring with her band. Would she even consider going back now right when her music career is really taking off?

Other names mentioned to fill one of the spots next to Simon are Paula Abdul, Jessica Simpson, Nicole Scherzinger and Cheryl Cole.

Taylor Momsen may be absent from one of our fave CW shows, Gossip Girl, but her scandalous fashion sense has still got people talking!

When castmate Jessica Szohr was spotted out with gal pals in West Hollywood last night, a photog asked her if Momsen showed up to the New York set in lingerie.

Jessica just smiled and said emphatically "I love her!"

We love her too -- and we also love seeing her step out in lingerie! Click on the gallery below to see the 17-year-old Ms. Momsen rocking a corset and garters while performing at the Van's Warped Tour last year.