Justin Bieber, Robert Pattinson, Jennifer Aniston Among People's Choice Nominees

Kaley Cuoco, who will serve as host of the 2012 People's Choice Awards, hit The Paley Center for Media in Beverly Hills on Tuesday, Nov. 7 to announce the lucky nominees for this year's ceremony.

Joined by Elisha Cuthbert, Julianne Hough, Joe Jonas, Jennifer Morrison, Sharon Osbourne, Busy Phillips and executive producer Mark Burnett, the announcement marked the first day of voting in all 43 categories. Fans can visit PeoplesChoice.com to cast their votes until Dec. 6, 2011, where registered voters are automatically entered to win tickets to the show each time they participate. Options for voting are also available via Facebook, Twitter and Android mobile devices.

The show is slated to air live on CBS from Nokia Theater, L.A. Live on Wednesday, Jan. 11. Now in its 38th year, the People's Choice Awards celebrates music, movies, television, and everything in between.

– The Hollywood Reporter