Christina Aguilera Weight Loss: Former 'The Voice' Judge Slims Down 25-lbs for Wedding? Matthew Rutler Marriage Rumors Swirl [PHOTOS]

Songstress Christina Aguilera turned some heads at the season four red carpet premiere of "The Voice" last month - thanks to her stunning 25-lbs weight loss. And exactly why did Aguilera decide to slim down her curvaceous figure? Apparently because she's currently planning to wed boyfriend Matthew Rutler in a secret summer wedding ceremony! (At least according to the National Enquirer, that is). Aguilera is looking beautiful and healthy, but do fans think it's really all just for a man?

An alleged inside source reveals exclusively to the Enquirer - "Christina is sprucing up and losing weight because she and Matt are planning to tie the knot this summer."

The insider continues to explain that X-tina "finally said yes to [Rutler's] repeated marriage proposals... [She's] ready to embark on a new life with a new hot body."

Funny thing - just last year, the Enquirer reported that Aguilera actually GAINED 25-pounds because (get this) Rutler was a supposed "chubby chaser!"

It's true, check the story out here.

These "Christina Aguilera loses weight to prepare for sexy summer wedding" rumors are most likely just that - rumors. According to another source for Gossip Cop, the "Lotus" songstress and her beau aren't prepared to tie the knot anytime soon. There's no true to the marriage gossip - X-tina is just "in a happy place" in her love life and career right now.

Still, the "What a Girl Wants" starlet is looking better than ever - what's her secret? Apparently the former "The Voice" judge doesn't weigh herself - she's also been "exploring new methods of exercise," including working with personal trainer Tee Sorge. An inside source confirms that Aguilera has also been "getting into healthier, fresh eating" habits and that she is "generally very comfortable with her body."

You go girl!