Katy Perry was really embracing her millennial roots during Billboards Women In Music celebration near Los Angeles on Wednesday.

Turning into her own Teenage Dream during the event, the pop star wore a crimson corset look by designer Ellie Misner, which featured a very 2000s-era exposed thong and some eyebrow-raising body art.

Perry kicked up her Vivienne Westwood platforms as she showed off her red skirt, which laced up the back with a gap that flashed her legs and derrire.

Contrasting her risqu apparel with classic accessory and beauty choices, she paired her ensemble with pearls, red lipstick and a long, dark ponytail.

The Firework singers visible lingerie wasnt the only wild part about her look.