Taylor Swift Performs “This Is What I Came For” During US Grand Prix Show

Taylor performed This Is What You Came For tonight. A legend. I'm shook. Tonight was amazing. pic.twitter.com/kEGSjMFWO9

— -S (@UnicornSamuel) October 23, 2016

Taylor Swift performed at the US Grand Prix in Austin today, October 22. Taylor performed a number of songs from her past albums including “You Belong With Me” and “Fifteen” and covered ex-boyfriend’s Calvin Harris’ (which you helped write) song “This What I Came For”.

This is the first show Taylor has performed in 2016 and, as of right now, the only one she is scheduled to do. You can check out her full set list in the gallery below.

I wonder what made her decide to cover this song during her show tonight. Why do you guys think she covered the song?