It seems Shawn Mendes wishes he was the one singing "I'm the One" to Hailey Baldwin.
After the Biebs Instagrammed several sultry pics of his new wife on Wednesday, Mendes--who dated Baldwin before she tied the knot with Bieber--"Liked" one of them.
But don't worry: Bieber then commented about Mendes' move, "Their friends, relax."