Katy Perry flashes underwear onstage in low-cut silver dress

Along with her terrific music and electric performance at BBC Radio 1's Big Weekend 2017, Katy Perry showed off a bit more that what we expected.

The ?Roar? hit-maker, who wore a sparkling silver mini dress with a matching blazer, flashed her white underwear onstage while squatting during her performance, reports E! Online.

She teamed her metallic look with white sneakers and dangling earrings.

The ?Bon App?tit? singer also dedicated an acoustic version of her song ?Part of Me? to the victims of last week's Manchester attack, after an Ariana Grande concert.

"I think that you guys are extremely beautiful and I think that we're all extremely brave and we're all in this together, aren't we?" Perry said. "And you know what? We will still dance, we will still sing, we will still make music. This next one goes out to Manchester and to all the people that know what it means to love music and be a community because of it."

"If you haven't kindly touched the person to our right or left just do that. Just a little connection," the 32-year-old singer added. "Social media can't do that, can it? This is a part of us that they'll never take away from us. Rest in peace, Manchester."

(This article has not been edited by DNA's editorial team and is auto-generated from an agency feed.)