Everyone thinks that the Oscars are the biggest night in fashion, but in reality, it's the Met Gala .

The annual ball, which formally kicks off the Metropolitan Museum of Arts yearly Costume Institute exhibit , draws just about every Hollywood heavy-hitter -- not to mention stars at their boldest. (Please see Nicole Richie's grey hair in 2013 , Lupita Nyongo's feathered number of 2014 and Rihanna's massive gown of 2015 ).

This year, the theme, "Manus x Machina: Fashion in an Age of Technology," made room for some... interesting choices. Taylor Swift arrived in what can only be described as a spacesuit, Alicia Vikander donned a robot-esque Louis Vuitton dress and Julie Macklowe appeared in a mirrored jumpsuit (perhaps R2-D2 inspired?). Others went a more classic route *cough, cough* Rosie Huntington-Whiteley and, as always, Anna Wintour looked like her regal self in Chanel.

Check out all the most noteworthy looks below: