Jumpin' Jack Flash: Listeners will have the opportunity to win more than 700 prizes and experiences during iHeartMedia's inaugural Access Day June 1. The 24-hour radio takeover event gives listeners the chance to win concert tickets, brand giveaways and opportunities to meet artists and on-air talent, including Dierks Bentley and Bobby Bones. The full list of prizes will be announced June 1 on iHeartMedia radio stations.