This content is copyright of CelebMix.com. We're going to need everybody to report to the dance-floor immediately because the Sugababes are BACK-and this time they've brought a BOP! Their brand spanking new single 'Shook' just dropped, and guess what? WE. ARE. OBSESSED. After slaying with 'Jungle' and the moody magic of 'Weeds', our fave trio-Mutya, Keisha and Siobhan (aka the sacred pop triangle) have unleashed a certified summer smash.