Blood drives are supposed to be sobering, life-affirming affairs, but at the Rock 'n' Roll Up Your Sleeve blood drive Saturday, you are encouraged to rock out.

During the drive — from 7 a.m. to 2 p.m. at the Sheraton Tucson Hotel and Suites, 5151 E. Grant Road — donors will receive a rockin' T shirt and have their names entered into drawings for concert tickets, Ticketmaster gift certificates, a $2,500 dream vacation and CDs and DVDs.

To make an appointment, click here. Walk-ins also welcome.