Miley Cyrus  jimmy kimmel midriff Miley Cyrus  jimmy kimmel midriff Pharrell Williams

We're not sure what on earth Miley Cyrus is wearing (or who Channing is!), but her abs look incredible and we're happy to see her smiling -- and rocking her engagement ring!

On Wednesday the 20-year-old pop superstar stopped by Jimmy Kimmel Live! in Hollywood for a taped appearance, and we spotted her giving Pharrell Williams a hug on the way in. As you know, Pharrell helped produce Miley's soon-to-be released album, and the duo also bumped into singer Robin Thicke. What are the odds?

And what about those crazy rumors that she's hooking up with Justin Bieber? Miles chatted with The Kane Show on Hot 99.5 in Washington D.C. on Wednesday and said, “I'm ENGAGED. I’m engaged. That is impossible.” Well, that and Bieber was actually leaving Diddy's son's house, NOT Miley's!