Following the 59th Annual Grammy Awards, Sir Lucian Grainge hosted the annual Universal Music Group’s Grammy After Party at The Theatre at Ace Hotel. The Grammy After Party also followed the UMG Artist Showcase, which took place on Saturday, with acts including Big Sean, Desiigner and Machine Gun Kelly. Inside the party, Grammy winning musicians, celebrities and Universal Music Group executives celebrated music’s biggest night. Some of the attendees included Katy Perry, Niall Horan, Keith Urban, Halsey, Ellen Page, Daya, Beck, Aloe Blacc, Katharine McPhee, Kat Graham, Desiigner, Mike Posner, Troye Sivan, Chord Overstreet, Glen Powell, Matt Sorum, Brothers Osborne, Afrojack, DJ Flume, Don Cheadle, Russell Simmons, Nancy Wilson, Borns, Megadeth and more.