Calvin Harris Strips to His Underwear For Birthday Post to His Manager

Calvin Harris is bearing it all on behalf of his manager Mark Gillespie!

The 32-year-old DJ took to his Instagram to share a funny photo with Mark in honor of his birthday.

PHOTOS: Check out the latest pics of Calvin Harris

In the pic, Calvin is standing with his manager in a hallway and he seems to have lost all of his clothing, rocking nothing but his underwear.

“Happy birthday to my manager @gillespiemark I love u,” Calvin captioned the funny image.