Fifth Harmony were the special guest  Friday night at Taylor Swift’s 1989 tour in Santa Clara, Calif.

Taylor Swift teamed up with the X Factor USA alumni to perform their smash hit ‘Worth It’.

Like every other special guest performance on Taylor’s 1989 tour, this one was all about the slayage. Amazing performance by Taylor and Fifth Harmony.

“I want to be in Fifth Harmony!” Taylor screamed on Twitter after the performance.

httpv://youtu.be/knX_d9pv6Zo