There were "fireworks" in Brooklyn last night!
Katy Perry surprised John Mayer fans by coming onstage to perform their duet "Who You Love" together at the Barclays Center.
"I'd like to welcome to the stage someone we all love, Miss Katy Perry," Mayer said to the cheering crowd.
The cute couple looked so in love during their first live performance together!
The "Unconditionally" songstress looked rocker chic in a long sleeved fitted embroidered dress, black tights and black stilettos.
Our favorite moment of the night? Katy gave her boyfriend a kiss on the cheek and hug before walking off stage. Check out the clip above to see them in action!
Earlier in the day, the adorable duo debuted the music video for their romantic ballad on "Good Morning America."
"Katy is a superstar for a reason," John said on the morning show. "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."
Aww, we adore these love birds!
How would you rate their live performance? Tell toofab in the comment section below, and check out all of John's famous exes in the gallery above!
