Sofia Vergara
A few months before marrying Joe Manganiello in a stunning Zuhair Murad gown, Sofia was a bridesmaid for a friend in June 2015.
Eva Longoria
The actress was a bridesmaid for a friend's wedding in Spain in May 2015. She walked down the aisle a year later with her hubby Antonio Baston in May 2016.
Beyoncé
The Queen B served as her sister Solange's bridesmaid during her New Orleans wedding in November 2014. Bey married Jay Z in a strapless white gown in 2008.
Ashlee Simpson
While Jessica Simpson has been a bridesmaid more than six times, Ashlee was a bridesmaid in pal Lauren Zelman's wedding. She then married her hubby, Evan Ross, in August 2014.
Keira Knightley
The Pirates of the Caribbean star looked pretty in plum for her brother Caleb's nuptials in 2011. She then went for pretty in pink during her wedding with James Righton in 2013.
Kate Bosworth
In 2008, the actress rocked a cute black dress as her friend said "I do." Bosworth herself got married to hubby Michael Polish in 2013.
Britney Spears
The Princess of Pop helped her assistant tie the knot in 2011, standing by her side in blue. Spears got married to Kevin Federline in a ceremony in 2004. They divorced in 2007.
Sarah Michelle Gellar
The actress donned a pink dress for a 2006 wedding, four years after marrying her hubby, Freddie Prinze Jr., in 2002.
Heidi Montag
The former Hills star rocked a navy blue dress for her sister, Holly Montag's wedding in 2014. Heidi had married Spencer Pratt in 2009.