Welcome to On the Radar, where we preview upcoming arts events to mark your calendars for. Two big stars hit big screens across Tampa Bay next week.

First up: Elvis. He could thrust his pelvis in a way that made the ladies scream (and cry). He had an inimitable voice and style, and he forever changed rock ‘n’ roll. He was The King, and he would’ve been 75 this year. In honor of Elvis Presley, movie theaters across the country screen Elvis on Tour: 75th Anniversary Celebration for one night only. The Golden-Globe®-winning concert doc highlights Elvis’ ‘72 tour, and offers never-before-seen interviews and footage, montage sequences (produced by Martin Scorsese, no less), and an exclusive retrospective produced by Priscilla Presley.

Also hitting theaters this month is the only three-time Rock and Roll Hall of Fame inductee: Eric Clapton. The screening of Eric Clapton: Crossroads 2010 – boggling your eyes and ears in HD and digital sound – features footage from