3 November 2014, 12:31
This is the weirdest thing you'll probably ever see.
While the rest of the hip-hop world were dressing up as skeletons, ninja turtles and Michael Jackson and going to parties, Macklemore hasd his own Halloween celebration when he decided to dress up as a grandmother and go house to house trick or treating.
The 'The Heist' singer wore a grey wig and glasses as he queued up with kids asking for sweets, without anyone realising who was among them.
Watch what happened above.