Ultra Music Festival

We've been hearing since June that global EDM superstars Swedish House Mafia are breaking up, but they've continued to perform live with regularity since then, leading us to wonder whether this was a Celine Dion-style non-retirement. Now the DJ trio has finally set a date for its final performance together: March 24, during a headlining set at the Ultra Music Festival.

Madonna is known for being full of surprises, and she had a big one up her sleeve this weekend. On Saturday night (March 24), the Material Girl surprised revelers at the Ultra Music Festival when she made a special appearance to introduce headlining DJ Avicii ... And in true Madonna style, she had another trick up her sleeve, too.