Jessica Alba, Nicole Richie, and Nas Are Friends?!

What an odd pairing of people!

Jessica Alba, Nicole Richie, rapper Nas and model Kelly Sawyer got together for a fun-filled dinner the other night, and the New Year's Eve actress tweeted this photo of the foursome with the caption, "Just a regular #mondaynight w @nasnyc @kellysawyer @nicolerichie" Who knew they were pals?!

Miss Richie seems to be everyone in Hollywood's bestie! Just the other week, the reality star turned designer enjoyed a Mexican meal with Khloe Kardashian and Kris Jenner, and we spot her out with a slew of other celebs like Samantha Ronson constantly!

Both Nic and Jess are moms to two young children, so we bet they had a lot of parenting tips to share!