Sam Smith performs at the House of Blues in Dallas.

Indie Rock band Alt-J performs at the South Side Ballroom on Nov. 5, 2014 in Dallas.

Mavis Staples performs at the Majestic Theatre on Nov. 13, 2014 in Dallas.

Bastille performed at the Verizon Theatre on Nov. 8, 2014 in Dallas.

Bastille performed at the Verizon Theatre on Nov. 8, 2014 in Dallas.

Black Keys lead singer Dan Auerbach performs at the American Airlines Center on Nov. 16, 2014 in Dallas.

Alt-J's lead singer Joe Newman begins the concert with the song "Hunger of the Pines" at the South Side Ballroom on Nov. 5, 2014 in Dallas.