Justin Timberlake and Anna Kendrick are at the Cannes Film Festival promoting their upcoming Dreamworks animated film, Trolls.
They took some time out on stage to sing Cindi Lauper's 80's ballad 'True Colours'. And it was EPIC.
"We are Anna and Garfunkel," Timberlake joked, "Okay, we are going to give this a go but you guys have to be nice okay?"
"We're just having fun, we're just friends here, right?" Kendrick joked, "We're just like, hanging out in your living room and this isn't a big deal."
Check out the adorable clip below.
'Their version of the 80's hit will be featured in the film, along with a new song from Justin, 'Can't Stop the Feeling'.
Trolls is set to hit screens in October 2016.