Whoa!

Mama June debuted the results of her gastric bypass surgery in a clip from the new episode of Mama June: From Not to Hot, and we can't believe how much weight she's lost!

The 37-year-old decided to try on wedding dresses for fun while helping daughters Honey Boo Boo and Pumpkin find bridesmaid's dress for their dad Sugar Bear's upcoming wedding, and it sounds like revenge was the reality TV star's main motivation for getting in shape.

"I'm trying to lose weight for Sugar Bear's wedding because my ex is getting married. I'm trying to rebrand myself as like the skinnier Mama June. The girls want me to try on a wedding dress because I haven't been in a dress since I started losing weight. But I'm kind of apprehensive, I mean we're supposed to be here for Alana not me. I mean I'm not getting married any time soon, but I'm kind of curious how I'm gonna look in the wedding dress," she says in the preview.

She tipped the scales at 460 pounds but her goal is to be a size 4.

Next thing we know she'll be doing a bikini reveal on the cover of a gossip magazine!