Party with a purpose this summer! Greatest Hits 99.9 KGOR is proud to sponsor the 25th annual American Red Cross Rock ‘N Roll Up Your Sleeve blood drive. Give blood Friday, June 1, from 6 a.m. to 6 p.m., at Baxter Arena in Omaha and Mid-America Center in Council Bluffs. All who come out to donate get a free Rock ‘N Roll Up Your Sleeve T-shirt, while supplies last! Make an appointment now!