Leann Rimes has laughed off rumours she has boosted her assets with a boob job, calling the story "crazy".
The singer sparked speculation she had gone under the knife for chest implants after she was spotted showing off a shapely figure while enjoying a post-Christmas holiday with fiance Eddie Cibrian in Mexico.
But Rimes is adamant she's all natural, writing in a post on Twitter.com, "Love the crazy stories, they make for weekly amusement!"
She also made a joke about the implant story, by suggesting it was Cibrian who opted for breast enhancement surgery, adding, "The rumours are true... Eddie got chest implants... ok, there (sic) fine."