Well, our prediction of Taylor Swift performing 'Brown Sugar' or 'B---h' with the Rolling Stones was totally wrong. The '22' songstress joined the legendary rockers on stage in Chicago for a performance of their 1965 track 'As Tears Go By,' -- a song about crying, something WAY out of T. Swizzle's wheelhouse. Are you picking up our sarcasm?

Taylor was indeed living a piece of Rolling Stones history last night, not only was she on stage with the band on their 50th anniversary tour, but the song she accompanied them on has a special place in their lengthy discography. The song 'As Tears Go By' was the first original song Mick Jagger and Keith Richards wrote as a team. Pretty cool for Ms. Swift!