The Pierces performed for a small private crowd at the Fuse + SoundTracking VIP Lounge during SXSW.

(L to R) Catherine and Allison Pierce of The Pierces perform during the Fuse + SoundTracking VIP Lounge at the Driskill Hotel on Saturday, March 17, 2012 in Austin, Texas. (Brandon Wade/AP for Fuse)

(L to R) Allison Pierce of The Pierces performs during the Fuse + SoundTracking VIP Lounge at the Driskill Hotel on Saturday, March 17, 2012 in Austin, Texas. (Brandon Wade/AP for Fuse)

(L to R) Catherine and Allison Pierce of The Pierces pose for a photo during the Fuse + SoundTracking VIP Lounge at the Driskill Hotel on Saturday, March 17, 2012 in Austin, Texas. (Brandon Wade/AP for Fuse)

(L to R) Allison and Catherine Pierce of The Pierces are seen during the Fuse + SoundTracking VIP Lounge at the Driskill Hotel on Saturday, March 17, 2012 in Austin, Texas. (Brandon Wade/AP for Fuse)

(L to R) Allison and Catherine Pierce are seen during the Fuse + SoundTracking VIP Lounge at the Driskill Hotel on Saturday, March 17, 2012 in Austin, Texas. (Brandon Wade/AP for Fuse)