Believe in Garnet, Amethyst, Pearl...and STEVEN at this star-studded, musically inspired gem of a panel brought to you by Cartoon Network. Sure to delight your eyeballs and earlobes, you won't want to miss a moment of the magic. Get the inside scoop and exclusive content from the following guardians of the universe: Steven Universe creator Rebecca Sugar, Ian Jones-Quartey (supervising director), Zach Callison (Steven), Estelle (Garnet), Deedee Magno Hall (Pearl), Michaela Dietz (Amethyst), and Tom Scharpling (Greg Universe).