‘Scorpion’ star Katharine McPhee was Harley Quinn for Halloween

It’s always fun to see which celebrities dress up as Batman characters for Halloween, and this year Scorpion star and former American Idol runner-up Katharine McPhee was Harley Quinn!

Katharine went all out with her costume and looked just like Margot Robbie’s Suicide Squad character, complete with her jacket and baseball bat.

So now I have to ask… who wore it better? McPhee or Robbie? Sound off in the comments below!