The 2012 ACM Awards are so big they needs two venues to hold it. In addition to the fun going on at the MGM Grand, the Zac Brown Band are hosting this year's Fan Jam at the Mandalay Bay Casino and Hotel in Las Vegas. The group kicked off the satellite broadcast by performing their hit song 'Keep Me in Mind.'

Last year's host Sugarland introduced the Zac Brown Band, who had taken the stage in front their full touring  set instead of the borrowed equipment other artists use to play. Brown sounded great as usual, and looked sharp in a new knit beanie. Thousands of fans at the Mandalay Bay waved their hands in the air throughout the entire performance.

Zac Brown Band are up for the Vocal Group of the Year award at the 2012 ACM Awards. While they've been regular nominees for the award, they've yet to take home the trophy. Earlier, the singer talked about Camp Southern Ground during the red carpet pre-show broadcast. It's a summer camp for kids with disabilities that Brown founded and stays very involved in despite a heavy touring schedule.

Watch the Zac Brown Band Perform 'Keep Me in Mind'