Adam and Behati Bring the '80s Back at Maroon 5's Smashing Halloween Bash

Adam Levine and Behati Prinsloo kicked off their first Halloween as husband and wife in coordinating ensembles, joining the group of celebrity pairs who have donned couples costumes. A few months after Adam and Behati's star-studded wedding, the duo debuted throwback '80s looks at Adam and Maroon 5's 10th annual Halloween party in LA on Friday. While Adam went for a Mötley Crüe rocker look with long hair, makeup, and a jean jacket that showed off his arm tattoos and abs, Behati looked straight out of Olivia Newton-John's "Physical" music video in colorful athletic gear. The Victoria's Secret model even had a pink headband! At one point, Adam stole the spotlight by going shirtless and hitting the stage with his bandmates. Lily Allen, Bill Maher, Mischa Barton, and Busy Philipps also attended the event at Sportsmen's Lodge. Keep reading to see their costumes, and don't forget to check out all the celebrity costumes we've seen this year!