Fergie took the stage at The Borgata Hotel Saturday night in Atlantic City and then played host at mur.mur for an after party. She flashed a huge smile as she walked the red carpet solo, and she also wasn't shy about showing off her new bling ring while performing. However, while we've been hoping to get some juicy details on Fergie's engagement, it sounds like Fergie may never let the secret out. She said, "I'm not giving any details. I think [the fine points] are sacred. It's just important to us. [But] it's hard for me because I have a big mouth."

We have to admit we're hopeful Fergie will let a few little secrets spill while she's busy planning her wedding in 2008. For lots more pictures of Fergie walking the red carpet and dancing on stage just read more