Article continues below advertisementSinger Michelle Branch was one of the celebrities on the guest list of an exclusive Sean "Diddy" Combs party, but even she didn't know what was really going down behind closed doors. The "Everywhere" artist, 42, made the confession while watching the 50 Cent-produced documentary Sean Combs: The Reckoning, sharing a screenshot of text messages between herself and former Wreckers duo partner Jessica Harp on her Instagram Stories.