Anna Faris & Allison Janney Celebrate 100 Episodes of 'Mom'!

Anna Faris and Allison Janney hug it out as they celebrate their hit show Mom’s 100th Episode on Saturday night (January 27) at TAO Hollywood in Los Angeles.

The actresses were joined at the event by castmates Sadie Calvano and Jaime Pressly.

PHOTOS: Check out the latest pics of Anna Faris

Also stepping out for the event were a few of the show’s guest stars including Emily Osment, Jon Cryer, and Kristin Chenoweth.

Mom airs on CBS on Thursday nights at 9pm ET.

15+ pictures inside of the stars arriving at the event…