John Mayer & Katy Perry Perform “Who You Love” in Brooklyn!

Posted Wednesday December 18, 2013 10:05 AM GMT

It’s one of the hottest singles of the season, and Katy Perry and John Mayer have been busy plugging “Who You Love” all week.

After releasing the music video on “Good Morning America” on Tuesday (December 17), the “Bigger Than My Body” crooner and his “Firework” lady teamed up for a live performance at the Barclays Center in Brooklyn later that night.

Mayer has made no secret of his admiration for Perry, telling press, “Katy is a superstar for a reason. That's the thing about working with somebody you love. You get to see them. I had to [make] a video in order to get to see my girlfriend.”

And Perry returned the compliment- “John has a very gentle, authentic touch to everything he does.”

As for the whole duet project, John was a little apprehensive initially. “For me it was always about the song. If the song is great, you’re kind of in this bubble of authenticity. And if the performance is great. It's a pretty big moving target to be a couple and have a song but there’s an authenticity to it.”

Photo Credit: WireImage