Mick Jagger and WHO? Carrie Underwood VS Taylor Swift! Which Country Cutie Rocks Your World?

The GREAT rocker Mick Jagger recently performed with two of country music's biggest female stars, Carrie Underwood and Taylor Swift.  He rocks with Carrie and croons with Taylor.  Just curious, who do you think does a better job?

Mick and Carrie's jam session to "It's Only Rock and Roll"

Mick and Taylor slow it down to As Tears Go By

Who rocks your world?