Darren Criss: Joe's Pub Surprise Show!

Darren Criss rocks out during a surprise performance at Joe’s Pub on Sunday (December 18) in New York City.

The 24-year-old Glee star also hit the stage during the Sing Out, Raise Hope benefit concert at Lincoln Center on Saturday (December 17) – the show raised money for the Elizabeth Glaser Pediatric AIDS Foundation and The Trevor Project.

PHOTOS: Check out the latest pics of Darren Criss

At the super secret Joe’s Pub show, guests had the chance to pick up an exclusive show poster and watch Darren if they brought a toy for Toys for Tots.

10+ pictures inside of Darren Criss onstage in New York City this weekend…