Mel B can now fit into her 13-year-old daughter's jeans.
The 36-year-old former Spice Girl gained 66lbs whilst pregnant with third daughter Madison, but has reached her goal weight after just 20 weeks of dieting and working out.
Weighing in at 132lbs, the former Australian 'X Factor' judge - who is also the face of weight loss company Jenny Craig - feels like her old self again.
She said: "The six-pack is back! I'm the same girl from 15 years ago ... losing weight has made me the best mum possible. My energy's up!"
Her slimline figure means she has also been able to raid daughter Phoenix's wardrobe for once.
Mel told Australian magazine Woman's Day: "The jeans were mine in the first place. She stole them off me when I was pregnant, but now I fit back into them. So I'm taking them back, one by one."
She relocated from Los Angeles to Sydney after landing a judging role on 'Dancing with the Stars', but admits she is yet to flaunt her beach body.
She added: "I haven't even been bikini shopping yet. To be honest, I'm not sure I can compete with the hot Bondi Beach babes just yet, but I'm fit and healthy and ready to dive into the Aussie lifestyle."