The two singers were joined by The Roots as they performed their collaborative hit in the Monday, January 4 episode of 'The Tonight Show Starring Jimmy Fallon'.
- January 6, 2016
AceShowbiz -
Shawn Mendes reunited with Camila Cabello as they visited "The Tonight Show Starring Jimmy Fallon" on Monday night, January 4. The pair hit the stage together for a live performance of their duet, "I Know What You Did Last Summer".
Cabello looked hot in a long-sleeved white mini dress and heels of the same color while her collabroator was wearing casual outfit consisting of dark-colored jacket over a gray shirt. Their set involved The Roots who backed the two singers, a thunderstorm and a lot of dramatic hair flips.
"I Know What You Did Last Summer" has been steadily climbing up the Billboard Hot 100 chart since its release in November. In the past few weeks, the couple has promoted the track by performing it on multiple TV shows including "The Late Late Show With James Corden" and "Live! with Kelly and Michael". Mendes also played it several times while he and Cabello's Fifth Harmony were on the "Jingle Ball" tour in December.