Celebrity·Posted on Oct 30, 2016OMG, Kelsey Grammer Dressed Up As Sideshow BobI hope they still make that shampoo I like.by Sheridan WatsonBuzzFeed StaffLinkFacebookPinterestTwitterMail Simpsons fans, do I have a treat for you. You know Sideshow Bob? Well, he was out IRL this Halloween weekend! That's right, the voice of Sideshow Bob, Kelsey Grammer, dressed up as him for Halloween. Not too bad, right? No word yet on whether David Hyde Pierce dressed up as Cecil. Tap to play GIF Tap to play GIF Happy Halloween, everybody!