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Watch Shawn Mendes And Jacquie Lee Slay Ed Sheeran's 'Give Me Love'

The fans get right in with the harmonies as well.

What do you get when you put Jacquie Lee on Shawn Mendes' tour?

This Ed Sheeran cover (and hopefully more in the future).

The two MTV Artists to Watch shared the stage at The Warfield in San Francisco on Friday night, when Shawn invited "The Voice" star to sing "Give Me Love."

Watch in awe as Jacquie, at one point, sings a full octave over Shawn.

Shawn is no stranger to Sheeran covers -- singing them in 6-second increments on his Vine account. And Jacquie admitted that she had a slight obsession with Ed's music too when she visited MTV:

“We met three times, and I don’t get starstruck anymore but I got so starstruck," Lee said of hanging with Sheeran. "His lyrics! I’m a big listener when it comes to the lyrics in a song, and I always go to his lyrics before I play his music. I just Google them, and then I pick out a couple of lines where I’m like, ’wow, that got me.'”

What do you think about Shawn and Jacquie's version of 'Give Me Love'?