Busy Philipps visited pal Michelle Williams backstage at Cabaret on May 2. Credit: Courtesy of Busy Philipps

Besties at Broadway! Busy Philipps paid pal Michelle Williams a visit backstage at her Broadway show Cabaret on May 2. The Dawson's Creek costars looked fresh-faced and happy to be in one another's company. 

"I am so proud. I can't stand it," the Cougar Town star captioned the picture on Instagram. 

The pair have been longtime friends since Philipps' 2001 to 2003 stint on Dawson's Creek. They attended the Golden Globes together in 2012 and in January 2013 they vacationed with Williams' then-boyfriend Jason Segel in Cancun, Mexico. 

"You need to go see Cabaret if you're in New York because MY BEST FRIEND KILLED IT," the mother of two wrote on Twitter.