Miley Cyrus 'twerks' in a unicorn costume

Ann Oldenburg, USA TODAY | USATODAY

Hot on the Web: Miley Cyrus' new video.

Basketball star LeBron James, will.i.am, Amber Rose, Pharrell Williams and Ryan Seacrest are among those marveling at Miley's WOP video, which she posted on Facebook on Wednesday and popped up on Good Morning America today. "She gettin it!!" tweeted LeBron.

In it, Miley's dressed in a unicorn outfit and she's "twerking."

Although it looks like a frog in the video or maybe a donkey or horse, it's a unicorn. We know that because Miley tweeted: "I'm a twerking unicorn NOT frog."

And what is twerking?

According to Wiktionary, it's "A puny or insignificant person, generally male; a twerp; To twitch or jerk; To move the body in a sexually suggestive twisting fashion."

So there's Miley, twerking. Or, as some might call it -- dancing.

Watch until the end and you'll see her stick her tongue out.

And what is WOP? It's a dance that first surfaced last year.

Also causing buzz in her photo is that engagement ring that appears to be back on her left hand.