Paris Hilton, Joan Rivers, Crystal Harris and Kelly Ripa all channeled the Bangerz singer in what's easily the most popular costume this Halloween. (Well, we could have told you that back in August as soon as Cyrus stuck her tongue out at the MTV Video Music Awards.)
In a decidedly more loyal take on the look, Hilton slipped into a onesie at Saturday night's Playboy Mansion Halloween Party in Beverly Hills, Calif.
Paul Zimmerman / WireImage
Playboy model Harris's costume was all about the accessories, though – and we're not just referring to the now-infamous foam finger. Husband Hugh Hefner completed her Halloween look (which they proudly showed off on Twitter) in character as the "Blurred Lines"-crooning Robin Thicke.
Kelly Ripa later got tongues wagging on Thursday's episode of Live! with Kelly and Michael, in which she showed some serious skin next to her co-host, who channeled Thicke.
And what's Cyrus going as?
Rapper Lil Kim in her unforgettable one-shouldered ensemble (complete with pastie) from the 1999 MTV Video Music Awards.
Happy Halllllloweeeen pic.twitter.com/fcKztD9c6P— Miley Ray Cyrus (@MileyCyrus) October 31, 2013
So tell us: