Miley Cyrus -- Sporting Giant Rock ... Is She Engaged to Liam Hemsworth? [PHOTO]

Miley Cyrus is continuing to flame the engagement rumor flames by once again sporting a very engagement-y long ring while out last night with boyfriend Liam Hemsworth at a charity event hosted by Muhammad Ali.

Miley tweeted a photo of the ring earlier this week, but made no mention of it directly, sparking people to wonder if the wild child and the "Hunger Games" star were planning on getting hitched in the near future.

So with Miley leaving the ring's significance to our imagination, we gotta ask ...