Tiffany Thornton shares a laugh with pals Cole Sprouse and Emily Osment as they play a few games during Disney Channel’s New Year’s Eve Star Showdown.

The 23-year-old actress has been chosen to host part of the festivities where your favorite Disney Channel stars will compete in five Game Show challenges: “So Random,” “Last Star Standing,” “Sound Off,” “Quick Draw” and the “New Years Eve Countdown Game.”

Viewers can log on now to DisneyChannel.com to vote for their favorite moments, episodes, and more to be a part of their hand-picked New Year’s Eve line-up. Fans will also be able to vote for their Top 10 music videos of 2009 and the songs will air on Radio Disney!

Stars participating in this year’s New Year’s Eve celebration include: Demi Lovato, Sterling Knight, Brandon Mychal Smith, Doug Brochu, Allisyn Ashley Arm, plus Radio Disney hosts Ernie D and Jake and other DC stars!

“Disney Channel’s New Year’s Eve Star Showdown” premieres on Thursday, December 31 @ 6PM ET/PT on Disney Channel. Stay tuned for more info!

20+ pics inside of Tiffany Thornton hosting the showdown…