The "Black Widow" singer and the sexy supermodel both showed a lot of skin on Hollywood's biggest night, going nearly naked at the Vanity Fair soiree.
Ora flaunted her killer curves in a black asymmetrical Donna Karan Atelier gown with a sheer sleeve and a completely sheer back and side -- except for a train that covered part her booty. The songstress paired her racy look with a slicked back pixie cut, statement earrings and a bold red lip.
The British beauty's after-party ensemble was a stark contrast to her red carpet look -- a much more modest Marchesa corset gown with gold-leaf embroidery.
Meanwhile, Shayk strutted her stuff (and a whole lot of skin!) in an Atelier Versace gown and mesh bodysuit. She also opted to go commando, covering up her private parts with some perfectly placed black paneling.
The Sports Illustrated stunner paired her look with black pumps, tousled waves and a pink lip -- not that anyone was looking at those details!
Like Ora, the brunette bombshell changed out of a much more conservative white suit to hit the Vanity Fair bash.
Who do you think looked better -- Rita or Irina? Tell toofab in the comment section below, and see all the stars celebrating the Academy Awards in the galleries above and below!