Summer was going to point that one out before it turned into a wet melty mess in thr bag, so she was glad she didn't have to do that, but the look on her face after that list should worry him.

"But," she hedged, cautiously, "you have done Swift before....in a duet, too!"

Or he'd at least done a Taylor song that was a duet by himself, she couldn't remember, her player's memory was terrible.