Camila Cabello looks killer in white while performing with Shawn Mendes on The Tonight Show Starring Jimmy Fallon on Monday night (January 3) in New York City.

The 18-year-old Fifth Harmony beauty and 17-year-old “Stitches” singer performed their hit duet “I Know What You Did Last Summer” with a little help from The Roots.

“@jimmyfallon JEEEEEEMY I LOVE YOU SO MUCH YOURE SO AMAZING. THANK YOU SO MUCH FOR HAVING US. ILL LET YOU KNOW WHEN I STOP FREAKING OUT,” Camila tweeted.

Shawn wrote, “Thank you @jimmyfallon @theroots #IKWYDLSonFallon!!!”

Watch Shawn and Camila‘s amazing performance below!


Shawn Mendes & Camila Cabello on Fallon Tonight 1/415
Photos: Douglas Gorenstein/NBC

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