Jennifer Stone parties it up with Kay Panabaker inside NYLON Magazine’s 13th Annivesary Celebration held at Smashbox Studios on Tuesday night (April 10) in West Hollywood, Calif.

The two actresses were joined by Maiara Walsh and Jake T. Austin, plus more, at the big bash.

PHOTOS: Check out the latest pics of Jennifer Stone

The event highlighted NYLON’s history as a pop culture innovator and featured an installation of 13 covers from the past, selected personally by Marvin Scott Jarrett. Samantha Ronson and Benji Madden provided the music for the event, which also included a photo booth where guests were photographed in front of NYLON cover art and became cover stars themselves.

FYI: Jennifer wore an AllSaints dress with Miu Miu heels. She accessorized with Tarina Tarantino earrings and a House of Harlow ring.

10+ pics inside…

• Quiz time with Mean Girls 2 Cast – Cambio
• Spa Slumber Parties! – JSYK
• Hilary Duff: Neiman Marcus Madame – Just Jared
• Who was the prettiest in pink? – Teen.com
• Rise and Shine in Metallics – Teen Vogue
• Katy Perry heads to Facebook HQs – Celebuzz
• Ashley Greene: Meet Theodore! – M
• Skins stars get defensive – Popeater
• Justin Bieber wants his BRIT Award – Celebuzz

Check out the brand-new poster for Mean Girls 2!

JJJ just got a glimpse of the new movie and we love it! It’s definitely different from the original Mean Girls, but give it a chance and watch it!

Star Jennifer Stone told us that the original film would think of Mean Girls 2, “as a little sister.”

Stay tuned to JJJ for more of our exclusive chat with Jennifer. Tons of goodies all about Mean Girls 2!

Mean Girls 2 premieres Sunday, January 23 @ 8PM ET/PT on ABC Family.

Diego Boneta shows Meaghan Martin and Jennifer Stone the picture he just took of them on his camera in this brand-new still from Mean Girls 2!

The new tale follows new high school student, Jo (Martin), who agrees to befriend an outcast, Abby (Stone), at the urging of Abby’s wealthy father in exchange for paying all of Jo’s costs for the college of her dreams.

Jo and Abby team up to take on the school’s “mean girls,” the Plastics. The story becomes a high stakes battle of loyalty that ultimately comes to a head when one of our heroines finds out that her friendship has been bought and paid for.

Mean Girls 2 premieres Sunday, January 23rd @ 8PM ET/PT on ABC Family. 30+ pics inside…

Check out the poster and trailer for the upcoming Mean Girls 2!

Starring Meaghan Martin, Jennifer Stone, Nicole Anderson and Maiara Walsh, the new tale follows new high school student, Jo, who agrees to befriend an outcast, Abby, at the urging of Abby’s wealthy father in exchange for paying all of Jo’s costs for the college of her dreams.

Jo and Abby team up to take on the school’s “mean girls,” the Plastics. The story becomes a high stakes battle of loyalty that ultimately comes to a head when one of our heroines finds out that her friendship has been bought and paid for.

The straight-to-DVD flick will hit shelves in February 2011.