The friends couldn't help but share a laugh on the red carpet of 2012's So the World May Hear Awards in St. Paul, Minn.
The pals posed together at a Sirius XM event in 2013 in NYC.
The comedians goofed around at the 2007 New York Comedy festival.
The pals shared a table at the Academy Awards Governor's Ball in 2010.
The director and actor attended an event for 1991's Hook in Century City, Calif.
The former Birdcage co-stars stuck together backstage at NYC's Richard Rogers Theater in 2011.
The former co-stars were all smiles on the set of Williams' The Crazy Ones.
The Mrs. Doubtfire co-stars looked sharp at the 2005 Golden Globes.
The trio were all laughs at the 2004 Cool Comedy Hot Cuisine benefit.
The boxer posed with the comedian in 2006 in Phoenix.
Williams presented the actress with her Oscar in 2010.
The pair hugged it out at John's Oscars party in 2000.
The Happy Feet Two co-stars posed at the film's 2011 premiere in London.
Say cheese! The friends attended the 2006 Amfar After Party in Cannes.
The Crazy Ones stars got silly at CBS' 2013 Upfronts.
The funnymen shared a laugh at the Los Angeles Man of the Year premiere in 2006.
The three pals stuck together at the 2007 VH1 Rock Honors.
The friends posed on the 2004 Oscars Red Carpet.
The funny guys shared a moment at the 2009 People's Choice Awards in Los Angeles.
The actress couldn't help but giggle on the set of Old Dogs.
The actors posed together during Mike Nichols AFI Lifetime Achievement Award ceremony in 2010.