The "Rich Kids of Beverly Hills" star attended MAXIM Magazine's Official Halloween Party in Los Angeles over the weekend, where he flaunted his hot new bod while wearing black lingerie.
Johnson -- who dropped a whopping 180-pounds after undergoing gastric bypass surgery last year -- put his weight loss on display wearing a black silk kimono and fishnet leggings. We're not exactly sure what the heck he's dressed as, but wow, does he look great.
EJ wasn't the only star at the event -- fellow Bravolebrity and "Shahs of Sunset" star Golnesa Gharachedaghi dressed up as Catwoman, while Dumblonde singers Aubrey O'Day and Shannon Bex wore coordinating "101 Dalmatians" costumes.
There were a ton of other stars who got into the Halloween spirit early over the weekend -- check out the gallery above to see more killer celeb costumes, including Kourtney Kardashian, North West and Colton Haynes' incredible Ursula getup!
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