Heading toward upfront season, Cartoon Network has officially announced renewals of 11 series, including "Adventure Time," "Regular Show" and "Teen Titans Go!," and the addition of three original shows to its 2015-2016 lineup, led by the "Powerpuff Girls" reboot.

The cable channel will also introduce "We Bare Bears," a comedy about the awkward attempts of three bear siblings to assimilate into human society, and "Mighty Magiswords," an original digital series about a brother and sister team of warriors for hire who go on quests to collect magical swords.Newly acquired series include the buddy comedy "Total Drama Presents: The Ridonculous Race," "Transformers: Robots in Disguise," and "Supernoobs," about four nerdy friends who must save the world from a space virus.Cartoon Network also revealed plans for a handful of crossovers, movies and specials: "Say Uncle," a "Steven Universe"/"Uncle Grandpa" crossover; "Regular Show: The Movie"; "The Royals" miniseries from "Regular Show's" Sean Szeles; and an "Adventure Time" miniseries in which Finn and Jake face a new threat to Ooo when Princess Bubblegum's experiment unleashes ghosts from Marceline's past.Joining "Adventure Time," "Regular Show" and "Teen Titans Go!" in renewal are "The Amazing World of Gumball," "Clarence," "Uncle Grandpa," "Steven Universe," "Mixels," "LEGO Ninjago: Masters of Spinjitzu," "Pokemon the Series: XY" and "Sonic Boom."