I See You Baby

When Gwen Cooper took Emma-Louise Cowell to a Cardiff bar in the 21st century, a song was playing. Its lyrics were a simple repetition of the lines:
 * I see you, baby
 * Shakin' that ass (x3)

Emma and the others danced to the tune while Gwen and Rhys talked on the side. (TV: Out of Time)

Behind the scenes
The song can be heard playing in Out of Time; however, it is is never referred to by name.