Kelly Clarkson feat. Vince Gill: "Don't Rush"

As Taylor Swift goes dubstep, Clarkson veers south with a squishy Eighties-style duet along the lines of Dolly Parton and Kenny Rogers' "Islands in the Stream." It's a paean to extended foreplay with a slightly awkward vocal hook ("Stopping every minute/Just because you're in it"). But the girl's got pipes, and creates some heat with Nashville multi-tasker Gill.

Listen to "Don't Rush":