With Halloween right around the corner, some celebrities spent this past weekend dressing up in their ghoulish best, while some kept it all business and spent it being responsible at work or looking for a new place to call home. Check out some Halloween costumes, who needed a fake tummy for a movie role, who’s looking to move to NYC, and who Rihanna spent time with in the studio.

Are they? Aren’t they? Chris Brown and his ex, Karrueche Tran, continue to make people guess about their status when they show up at the same places. This time it was a Halloween party at GreyStone Manor. Both didn’t even try with their costumes. Chris wore a baseball jersey and mediocre skeleton makeup and Tran wore a Kimono. No pictures show them together, but being there is just enough to make everyone wonder.

Zach Galifianakis was dressing up, but not for the holiday…He recently slimmed down, so much so that he needed a prosthetic stomach for his character in The Hangover III.

While Chris Brown was at a party, his other supposed lady, Rihanna, was in the studio with none other than…Brown’s mom? Yup, his mother Joyce was seen leaving the studio and then getting something to eat with Rihanna.

Let’s head back to the parties. Pretty Little Liar’s star Lucy Hale went to the Just Jared Halloween Party with her boyfriend Chris Zylka. She was a raver looking rainbow unicorn and he was, well he said he was Nirvana frontman Kurt Cobain, but that hair begs to differ. Cobain had blonde hair, not white…

Despite the hurricane near New York, Modern Family beauty Sofia Vergara and her fiancé Nick Loeb spent some time there this weekend with a realtor looking at apartments.