Talk about a power ballad. Jason Aldean's duet with Kelly Clarkson, 'Don't You Wanna Stay,' soared to No. 1 on the country charts and also marked two firsts for Jason: a Top 30 pop hit and an appearance on 'American Idol.' The duo sang the tune on last night's results show. Watch the performance by the country superstar and the original 'American Idol' below.