How do you get the best dressed people in Hollywood under one roof? You have a swanky opening party for a newly re-opened luxury vintage store -- and see them flock in!

Ashlee Simpson, Evan Ross, Rachel Zoe, Milla Jovovich and more all dusted off their finest duds for the opening of high-end vintage boutique, What Goes Around Comes Around, in Los Angeles.

Simpson nailed it in a vintage beaded duster, Bob Dylan t-shirt and skinny jeans, while her main man wore a white t-shirt, white jeans, denim jacket and some dapper boots.

Style maven Rachel Zoe kept her style long and flowing with some some chunky heels. Milla Jovovich kept the razzle dazzle going with a glittering black vintage dress and vintage heels.

In addition to those celebs, Rashida Jones, Crystal Reed, Kendall Jenner, and KeKe Palmer all made sure to stop by and check out the not-to-be-missed party!

This party looks like it was quite the sartorial sight!