The Brave and the Bold #28

Peter the Puffer Fish alerts Aquaman to an attack on Earth from an alien starfish named Starro the Conqueror. Starro has altered three ordinary starfish into his lieutenants. Aquaman alerts his friends Wonder Woman, Superman, Green Lantern, Batman, Flash, and J'onn J'onzz. Though Superman and Batman are too busy to attend, the rest meet and split up into teams.