Camila Cabello Performs 'Living Proof' on 'Fallon' - Watch Now!

Camila Cabello is slaying the stage on The Tonight Show Starring Jimmy Fallon!

The 22-year-old singer stopped by the late-night show on Thursday night (December 5) where she performed her latest single “Living Proof.”

PHOTOS: Check out the latest pics of Camila Cabello

Earlier in the show, Jimmy pressed Camila to talk about her relationship with Shawn Mendes – and she revealed that going from friends to “lovers” made it really hard for her to call him “baby.”

“We were awkward and nervous and weird, and now we’re older and nervous and weird,” Camila joked. “It’s kind of weird in the beginning — it took me two months to be able to call him ‘baby!’”

READ MORE: Camila Cabello Unveils Sophomore Album ‘Romance’ – Listen Now!