Pentatonix, a world-renowned a cappella group, has announced it will be performing at the Save Mart Center in May. Pentatonix, a world-renowned a cappella group, has announced it will be performing at the Save Mart Center in May.The concert will be May 14 and starts at 8:00 p.m. Tickets prices range from $29.50 to $129.50 and go on sale February 15 at noon.Pentatonix is a group from Texas that is known for their covers of widely known pop songs and Christmas songs. Report a correction or typo