Meet the A-listers who swapped a walk down the red carpet for a stroll down the aisle with their best friends!
Maid of Honour to: best friend Britany Maack, Februrary 2016
For her turn as MOH, Taylor dazzled in an embellished pink dress from Reem Acra - who also designed the bride's dress - holding a bunch of seasonal blooms in a ribbon-adorned bouquet. (Spot Taylor - and her flowers! - in the group shot below...)
Bridesmaid to: her brother's bride, Carson Massler
Jennifer was one of eleven bridesmaids at her brother Blaine's wedding to Carson. J-Law and her fellow bridesmaids all wore the same shade of lightest yellow, with each J,Crew dress cut in a different style.
Bridesmaid to: (left) March 2015; (right) the wedding of childhood friend Bo, in June 2013
So fabulous a 'maid does the soon-to-be-wed Lady G make that we've featured her not once but twice. We know, we know...
What we love the most about Gaga's bridesmaid style? Even though she's famed for her quirky personal style, she's clearly been happy to follow the bride's desires when playing bridesmaid.
Bridesmaid to: her brother's bride, Kerry Nixon, in April 2011
Keira was pretty-in-purple at her brother Caleb's nutpials, where she and her fellow bridesmaid both wore plum prom-style frocks. The petticoat-filled skirts would be perfect for bridesmaids at a vintage-themed wedding, don't you think?
Bridesmaid to: Isabel Halley, June 2014
Lena (on the right in the picture on the left, and in the middle in the picture on the right) rocked a slate grey tie-back creation from Reformation for the Midsummer Night's Dream themed wedding. Fabulous, no?
Bridesmaid to: Jennifer Morales, April 2015
Securing her spot as perhaps the naughtiest bridesmaid ever, Rihanna posed up a storm with her bouquet and, er, cigarette. She and her fellow bridesmaids looked fabulous in their purple gowns - which shade do you love the most?
Maid of Honour to: sister Kayleen, May 2015
Whilst the other bridesmaids wore dainty pastels, The Notebook star Rachel was the ultimate 'something blue' at her sister's wedding.
Bridesmaid to: Jacqui Louez, March 2008
Black is an unusual colour for a bridesmaid to wear - and doesn't Kate pull it off beautifully?
Sarah Jessica Parker
Bridesmaid to: Melinda Relyea, August 2014
Famous for playing the ultimate fashionista, it was no surprise that SJP looked fabulous when she took on the role of bridesmaid at her former assistant Melinda Relyea's wedding.
Bridesmaid to: Alina Peralta, May 2015
Dusky blue was the colour of choice for Eva when she was bridesmaid at her BFF's Spanish wedding - and we have to say, we adore the understated bare-foot glamour of her 'maid style. Gorgeous!