Nickelodeon favourite and two-time Kids' Choice Awards host Jack Black reunites with his School of Rock co-star Miranda Cosgrove in a new hour-long iCarly television movie, iStart a Fan War, premiering Sunday April 3 at 8pm.

Jack Black stars as Aspartamay, Spencer's online video game rival who challenges him to lyrical duel in the Comic-Con-inspired special. In iStart a Fan War, Carly and the gang are invited to host a panel at WebiCon, but the session is derailed when they are put on the spot by die-hard fans who demand to know whether Freddie is dating Carly or Sam and the 'Creddie' and 'Seddie' sides break out into an all-out fanboy riot.