11/01/2010 01:53 pm ET | Updated May 25, 2011

LeAnn Rimes In 'Engagement' Pic With Eddie Cibrian (PHOTO)

Is LeAnn Rimes engaged?

"I couldn't resist..." her boyfriend Eddie Cibrian tweeted Sunday night with this photo of him kneeling and cradling the right hand of an astonished LeAnn.

Sounds like it was just a stunt, perhaps to distract from LeAnn's recent 'Shape' magazine controversy.

"They are not engaged," a source told People. "It was just part of the Halloween fun."