CMT personality Lance Smith has been announced as the host of the second season of CMT's hit series, Can You Duet. He began his duties on Saturday (March 7) at the show's casting call in Nashville. Nearly 5,000 aspiring singers -- singles and duos -- auditioned to appear on the weekly series from American Idol producers FremantleMedia North America. Smith is also the host of CMT's Top 20 Countdown. As previously announced, Naomi Judd will return as a judge.