Mayor Buttigieg just formally announced that he's running for President of the United States down at an event in his city of South Bend, IN. In his opening speech, he touched on a few simple issues his platform will address, which he says can fit on a bumper sticker. Also, Ariana Grande's headlining set slayed at Coachella, and got an added boost by the long-awaited reunion of 4/5ths of her favorite boy band ... 'NSYNC.