See Shawn Mendes, Camila Cabello Belt Duet on 'Tonight Show'

The Roots back teen pop stars during stormy performance of "I Know What You Did Last Summer"

Shawn Mendes and Fifth Harmony's Camila Cabello performed their stormy, dramatic duet "I Know What You Did Last Summer" on 'The Tonight Show'

Teen pop sensations Shawn Mendes andFifth Harmony's Camila Cabello delivered the drama during their performance of duet "I Know What You Did Last Summer" on The Tonight Show With Jimmy Fallon Monday night. The single is featured on the re-release of Mendes' smash debut album Handwritten.

For their live performance, the pair gave a nod to the single's music video, featuring visuals of a sky during a thunderstorm before launching into their Roots-assisted live version. Both belted out the lyrics, which features a nod to Bill Wither's "Ain't No Sunshine" (the iconic soul singer has a songwriting credit on the single).

Since its November release, the single has been steadily climbing up the Hot 100 charts. While both Fifth Harmony and Mendes toured with Jingle Ball in December, the pair performed their duet during Mendes' sets. Mendes is set to play Radio City Music Hall in March, while Fifth Harmony will release their sophomore album later this year.