Nickelodeon is celebrating Valentine's Day with the best and worst moments, a slice of good and bad, a sense of love and evil, in a special marathon titled Villains and Valentines. Don't miss a 'valentine' and a 'villain' episode of your favourite shows; The Penguins of Madagascar, SpongeBob SquarePants, Kung Fu Panda: Legends of Awesomeness, iCarly, Victorious, Fred: The Show, and Big Time Rush including two new Australian premiere episodes!