Does Taylor know that in the not-so-distant past girls like her were throwing themselves at Def Leppard? Probably not, but in the genre-jumping TV show “ Crossroads†on CMT, Swift took the stage with the legendary rockers -- even trying her hand at “Pour Some Sugar on Me.†The guys helped out with her hits too, like “Teardrops on My Guitar,†and they weren’t shy about poking a little fun at the teen queen. When she gushed about putting all of her relationships into song, guitarist Vivian Campbell warned, “You realize no one’s going to date you.†“Yeah, I’m coming to realize that,†she replied with a giggle. (Rick Diamond / WireImage)