Demi Lovato & Darren Criss Team Up for We Day: Watch Here!
The "Glee" hunk played the piano and sang back up for the "X-Factor" judge during her song "Skyscraper."
Per their website, We day is an educational event and the movement of our time—a movement of young people leading local and global change.
Attendees earn their admission to the concert through service to their community as part of the year-long We Act program.
Check out Demi and Darren's performance in the player below!
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