When the sun comes out for summer, celebrity relationships tend to heat up the tabloids. New couples are spotted on the glamourous beaches and lunch cafes of Los Angeles, Miami and the other hot vacation destinations of the world. But sometimes, the heat is just too much —and even the hottest duos call it quits.
With Labor Day on the horizon and fall just around the corner, we're recapping the relationship highlights of this summer. Check out our gallery to see who has a new partner to snuggle with this fall and who will be left alone in the cold.
Photo Gallery: The Juiciest Celeb Hookups & Breakups Of Summer 2011