The Vanity Fair post-Oscars bash is perhaps Hollywood's most glamorous party. Tell that to Jared Leto, who photobombed Anne Hathaway as she posed on the red carpet.

The party was a who's who of Hollywood A-listers, dressed to impress. Hathaway wore a custom Viktor & Rolf dress. Jennifer Lawrence changed from the elegant red Dior dress she wore for the ceremony into a sheath that sparkled with what appeared to be tiny mirrors. Kate Hudson triumphed once again in a Zuhair Murad couture gown.

In this gallery, IBTimesUK looks at who wore what.

leto hathaway
Jared Leto jokes around behind Anne Hathaway as she poses at the 2014 Vanity Fair Oscars Party in West HollywoodReuters
hudson
Kate Hudson and Rosario DawsonReuters
lawrence
Jennifer Lawrence, Olivia Wilde, Naomi WattsReuters
lupita
Lupita Nyong'o poses with her best supporting actress Oscar as she arrives at the Vanity Fair PartyReuters
miranda
Miranda KerrReuters
rosie
Karolina Kurkova, Rosie Huntington-Whiteley, Petra NemcovaReuters
ellen
Oscars host Ellen Degeneres and her wife Portia de RossiReuters
wood
Evan Rachel Wood, Jaime King, Chrissy TeigenReuters
amy adams
Amy Adams arrives at the 2014 Vanity Fair Oscars PartyReuters
swift
Karlie Kloss, Paula Patton and Taylor SwiftGetty / Reuters
couples
John Travolta and his wife Kelly Preston; Will Smith and his wife Jada Pinkett Smith; Jon Hamm and his wife Jennifer WestfeldtReuters
gaga
Luke Hemsworth, Liam Hemsworth and Chris Hemsworth; Lady Gaga and Donatella VersaceGetty
clarkson
Patricia Clarkson, Sophie Vergara, Sheryl CrowReuters