Jason Mraz The acoustic singer-songwriter has had a hit here and there but usually stays off on the edge of the top 40. That all changed after his collaboration with Colbie Callait and single "I'm Yours" was being played just about everywhere. Sure, his sophomore album hit high on the Billboard chart, but most people didn't care. Now, people seem to be paying attention to his somewhat quirky style and funky rhythms. He's out in support of 2008's We Sing. We Dance. We Steal Things. this time around. Uptown Amphitheatre (Jeff Hahne)