Mariah Carey & The Twins, Rachel McAadams, James McAvoy & More Hot Celebrity Sightings For December 20, 2013

Nick & Mariah With Twins
The Two Love Birds Enjoy Time With Their Little Ones
So many photos, so little time. We spotted tons of celebrities out and about and attending events.

Mariah Carey looked to be enjoying her Aspen vacation with Monroe and Moroccan. Those two look very bundled up.

My girl crush Rachel McAdams was spotted looking gorgeous as she rushed through LAX. I bet she’s headed home to Toronto. 

And James McAvoy looked pensive as he sat on a stair in New York.

Launch the gallery to check out all the pics, and find out who was where and when!