Katy Perry has been wowing fans with her 20-lb weight loss transformation and epic string of sultry, ab-baring outfits lately. The “Roar” hitmaker and style icon, 39, touched down in Australia last week to perform at the AFL Grand Final.

The 39-year-old popstar, whose just unveiled her new album '143', claims she eats a lot of one breakfast classic that's packed with protein. And a nutritionist says she's on to something

Katy Perry has been showing off her slimmed-down figure in recent months and has credited her new physique to a combination of diet and exercise as she shares her weight-loss journey

The popstar has unveiled the types of food and drink she consumes on a daily basis. It includes two very unusual beverages and a classic breakfast staple