The Ellen Show wouldn’t be complete without a spooky scare on Hallow’s Eve.

Josh Duhamel became the latest target for her scare prank, with a hilarious scare by a Fergie impersonator.

The actor was dressed up as Lloyd Christmas — Jim Carrey’s character in “Dumb & Dumber’ — and sat with Ellen, who was dressed up as Karla Kardashian, the Kardashian’s long-lost, busty sister.

He admitted he felt “ridiculous” talking about his rather serious new movie, “Lost In The Sun,’ “dressed like this,”; but had no idea things were about to get way more ridiculous. Check out his priceless reaction.