WATCH: Shawn Mendes & Camila Cabello Tease Collaboration!

The new song titled, ‘I Know What You Did Last Summer’ (yes, like the movie) will apparently appear on Shawn’s re-release of his Handwritten album. Check out a teaser after the jump!

#IKWYDLS NOVEMBER 18TH https://t.co/FUEM7bjhRj @camilacabello97 Keep tweeting to reveal more this week pic.twitter.com/v7jrZt3EpO

— Shawn Mendes (@ShawnMendes) November 10, 2015

New snippet ! #7DaysTilIKWYDLS keep tweeting to reveal more this weekhttps://t.co/LDapfqUXee @camilacabello97 pic.twitter.com/4MHiyLxEge

— Shawn Mendes (@ShawnMendes) November 11, 2015

The two revealed on Twitter that origins of the song, explaining that it was written backstage during one of Taylor Swift’s ‘1989 World Tour’ shows!

The song will drop November 18^th!