Actress Cassidy Lehrman arrives at Nickelodeon's exclusive premiere for the upcoming primetime TV event of the summer. "iParty with Victorious," Saturday, June 4, 2011 at The Lot in Los Angeles. "iParty with Victorious" premieres Saturday, June 11, 2011 at 8 p.m. (ET/PT) and stars the casts of Nickelodeon's hit series iCarly and Victorious.