Pop icon Mariah Carey has reportedly shed an incredible 50 pounds, fueling rumors of a possible summer wedding to her beau Bryan Tanaka, according to insiders.

"Mariah also looks like she's lost ten years," a source shared. "She's never looked better!"

Weight-loss expert Dr. Stuart Fischer, who has not treated the 54-year-old singer, estimates that the 5-foot-8 star now weighs less than 120 pounds.

"She's lost quite a bit of weight. She looks very good. She appears to be laying off bad food and booze — and looks like she's been working out," Fischer tells The National ENQUIRER.

Recently, the "Always Be My Baby" singer showcased her impressive figure in an Instagram video, where she blew a kiss to the camera while donning a sparkling diamond ring on her engagement finger.

It's been about five years since Carey lost 40 pounds following gastric sleeve surgery, and insiders now suggest that the star may be preparing to walk down the aisle with her longtime love, 40-year-old Bryan Tanaka. Music biographer Mark Bego observes, "Mariah never looks better than when she's happy. The air is thick with buzz about an impending wedding!"