David Walton and Minnie Driver David Walton and Minnie Driver

Who's ready for Halloween?! Or should we say Will-o-ween?!

On next Tuesday's new episode of About a Boy (9:30/8:30c, NBC), Will (David Walton) gears up for his annual "legendary" Halloween celebration named, naturally, after himself. But before he can get the party started, he notices that Fiona's place is seriously lacking in decorations for the big day and he becomes determined to show her and Marcus (Benjamin Stockham) how Halloween is done.

Celebrity Halloween costumes that might even be a little too sexy

"You need to make your side of the porch a little less suicide-inducing," Will tells Fiona (Minnie Driver) in this exclusive sneak peek. "We're going to be loaded to the gills with trick-or-treaters and we need to be ready."

Despite the intense pressure from Will, Fiona is in absolutely no rush to go to the Halloween store with him and isn't afraid to say so. So why she is so against the holiday? Check the exclusive video below to find out:

About a Boy airs Tuesdays at 9:30/8:30c on NBC.