Wearing a humongous, gleaming ring on her left hand, Mariah Carey stayed close to Nick Cannon at the after party for her new film, Tennessee, on Saturday night.

Image details: Premiere Of "Tennessee" At The 2008 Tribeca Film Festival served by picapp.com
Sources say the pair held hands at the bash at Tenjune, which followed the movie’s premiere at the Tribeca Film Festival.
This followed previous rumors of the pair looking cozy in Vegas on April 14.
When asked about a possible engagement, Cannon’s rep had no comment; Carey’s was unable to be reached for comment.

Publicity stunt!