Lake Bell's Wedding: A Who's Who of Her A-List Guests

When Lake Bell wed tattoo and fine artist Scott Campell on Saturday, a slew of A-list stars looked on.

With a guest list that was a veritable Who’s Who of Hollywood, just how does the couple know all these famous folks?

• Justin Theroux and Jennifer Aniston
Theroux and Campbell are longtime New York friends who share a love of tattoos and motorcycles (they once formed a motorcycle gang called Die Fast), according to the New York Times. Theroux even wrote an essay in Campbell’s book, If You Don’t Belong, Don’t Be Long.

• Marc Jacobs
Campbell chose a Marc Jacobs suit for his wedding but Jacobs wears Campbell’s designs every day. Jacobs’s tattoos – including the one of his pet bull terriers, a couch on his hip and the word “Shameless” on his chest – were all inked by Campbell. The tattoo artist recently told The Hollywood Reporter of his good friend: “He’s brilliant. So inspiring. His confidence in me, and his encouragement, has been really significant in just figuring out a reason to get out of bed each morning.”

• Josh Hartnett
The actor also gets his ink from good friend Campbell, whose Williamsburg tattoo parlor Saved is a popular celebrity hangout. Harnett was on hand for Campbell’s first official art show Make It Rain at OHWOW Gallery in Miami in 2009.

• Lance Armstrong
A good friend of the groom, Armstrong Tweeted the day of the wedding: “Down in New Orleans for my buddy (and incredible artist) Scott Campbell’s wedding. Love this town.”

• Alicia Silverstone
Silverstone and Bell worked together on the 2003 show Miss Match and both are animal rights activists.

• Eva Longoria
Longoria starred with Bell in the 2008 film Over Her Dead Body.

• Cameron Diaz
Diaz and Bell remained friends after playing best friends in the romantic comedy What Happens in Vegas.

• Kate Bosworth
Bosworth and Bell are good friends and lived together while filming the thriller Black Rock in a small Maine town, the Los Angeles Times reports.