Miranda LambertMiranda Lambert and fiancee Blake Shelton have already made several decisions about their upcoming wedding, including serving deer meat at the reception and being serenaded by good friend Neal McCoy. While fans are still waiting to see what the bride's wedding gown will look like, chances are she will have to buy one in a smaller size!

"I don't know how much weight I've lost. I just know people tell me, 'You look great,'" she tells Us Weekly (quote via CMT.com). Admittedly down two dress sizes already, the soon-to-be bride says it all comes down to healthy choices.

"Now instead of Cheetos, I choose almonds," she explains, adding that her diet consists mostly of oatmeal, vegetables and turkey. "No mayonnaise, no potatoes or bread ... really just vegetables and meat."

The three-time CMA Award winner even found time to add a grueling work-out routine to her schedule, no small feat considering she spent most of the last few months on the road as the headlining act for CMT on Tour: Miranda Lambert Revolution 2010. But the platinum-selling singer may finally be making peace with living on the other side of the camera lens - a situation she admits was a challenge in the past.