AceShowbiz -

Justin Bieber, appearing as himself, will guest star on Nickelodeon's "True Jackson, VP" on Saturday, November 14 at 8.30/7.30c. The singer saves the day when he agrees to help True in her charity work which almost goes bland due to lack of act.

True is determined to save her school's design department from budget cuts and decides to hold a fund raising concert. As she searches for a big performer to headline the concert, her best friend Lulu offers little help as she is more focused on trying to find alone time with her crush Mikey J.

Just when it looks as though her friend Ryan's mediocre magic act is her only option for a headliner, pop sensation Justin Bieber agrees to perform. All seems fine until last minute problems have the students scrambling to save the show and their school's design department.

Bieber once wrote on his Twitter about shooting the scene, saying "on the set of the show 'True Jackson' in LA. Keke [Palmer] is really cool. might sing 'ONE TIME' with me as a duet. Haha." The mentioned song is the first single from his upcoming debut album "My World" which will be released on November 17.

Apart from Bieber, the episode will also feature a performance by girls-group Care Bears on Fire singing "Everybody Else".