Nathan cancels virtual reality, Klumsy Kevin returns at the Dullmont dog show, Monsters Only, the only app exclusively for monsters, and the Island Boys return. Musical Performance: Johnny Orlando

Nickelodeon brings cheer this holiday with star-studded appearances and musical performances by JoJo Siwa, That Girl Lay Lay, and Ne-Yo as Nickelodeon star Lex Lumpkin journeys to the North Pole to meet Santa Claus before the biggest show of the year.