Calvin Harris Dresses as David Guetta for Halloween!

Calvin Harris dressed up as a fellow DJ for Halloween this year – David Guetta!

The 32-year-old DJ and music producer was seen wearing a mask over his face and sunglasses to make himself appear as David while attending a party on Monday (October 31) at Catch in West Hollywood, Calif.

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The next day, Calvin was spotted going to the gym in his usual outfit. See those pics in the gallery!

20+ pictures inside of Calvin Harris stepping out for Halloween and a workout…