Ellen DeGeneres Punks Taylor Swift

Ellen DeGeneres was on a Halloween rampage this week, purposely scaring the bejesus out of her celebrity guests backstage - and catching it on hidden cameras for ‘Ellen.’

The talk show host punk’d Mario Lopez and David Spade - but she got the biggest squeal out of singing sensation Taylor Swift, who was so spooked, she ended up on the floor.

Watch the funny clip below.

More on These Topics: Ellen Degeneres | Taylor Swift | Top