I never saw that J. Legend/Tayload performance. I love how during the beginnning of the dance breakdown, Jenny was getting ready to start doing the choreography with the dancers and then looked over to Taylor and stopped herself.
I can imagine Taylor's handlers getting ready to pull out the WHIP in the event that J. Lo would overshadow her with her performing talent.
Lord doesn't need to dance because her songs do not give her much beats to dance to anyway. Of course, if her songs were to demand any kind of choreography on stage, she would perfect that too.
I really don't see the appeal in going to a Taylor show though; she's never excelled at anything onstage other than "Look how quirky and relateable I am!!11!!!"
At least Katy displays some interesting visuals on her tours; rather hear her squawk and bark her way through another off-key rendition of Firework than watch Taylor pretend she's "just like me!!!!" with her non-rhythmic dancing and KKK coup of friends named Becky and Amber.