If you missed Ronnie James Dio live in concert before his 2010 death you have a chance to see him this summer...sort of. Dio's estate has released a new trailer for the "Dio Returns" hologram tour which hits the road June 8th. While the first version and this version of Dio's hologram has been called "cheap" by some fans, Dio's widow Wendy says the technology "blew me away, the effects are unbelievable." The company that made the Dio hologram also made the Frank Zappa hologram. Are hologram tours cool or weird to you? Is there an artist you'd see as a hologram?