The two-time Nickelodeon's Kids Choice Awards host is coming over the kids show as a video game expert who will come face to face with Spencer at Webicon.
Jack Black is jumping from one TV series to another. In the past two years alone, he has shown up on "The Office" and "Community". This time he's moving away from the NBC label to guest star on Nickelodeon's "iCarly".
Black, who is popular among kids with his role in "The School of Rock" and his voice in "Kung Fu Panda" is slated to appear in an episode, EW heard from a source. He's going to play Aspartamay, Spencer's nemesis in videogaming, who will challenge Spencer at the show's so-called Comic Con, the Webicon.
Black will film his part this week for a premiere later this season. This would be his reunion with the series' star Miranda Cosgrove who played the ambitious band manager Summer Hathaway in "The School of Rock".