The arena that hosted the 2017 "Billboard" Music Awards opened  on what date?
T-Mobile Arena T-Mobile Arena is a multi-use indoor arena on the Las Vegas Strip in Paradise, Nevada. Opened on April 6, 2016, the arena is a joint venture between MGM Resorts International and the Anschutz Entertainment Group.
Wells Fargo Arena (Des Moines, Iowa) Wells Fargo Arena is a 16,980-seat multi-purpose arena in Des Moines, Iowa, United States. Part of the Iowa Events Center, the arena opened on July 12, 2005, at a cost of $117 million. Named for title sponsor Wells Fargo, the arena replaced the aging Veterans Memorial Auditorium as the Des Moines area's primary venue for sporting events and concerts. The first event held at the arena was Tony Hawk's Boom-Boom Huck Jam, on July 14, while its first concert, Tom Petty and the Heartbreakers, with The Black Crowes, was held on July 18.