Justin Timberlake and Anna Kendrick took the stage for duet at Cannes Film Festival’s Palais and covered a Cyndi Lauper classic.

On Wednesday, the two performed a rendition of Lauper’s hit “True Colors” which will be featured in an upcoming DreamWorks Animation musical titled Trolls.

Just before they began singing, someone in the audience yelled, “I love you Justin.”

JT replied, “You sound like you’re seven,” which garnered laughs from the crowd. He then added, “I love you too. Go see Trolls."

You can watch the video of their performance below: