Katy Perry has crossed a milestone with her latest album, PRISM. Perry has sold one million copies of her album which features "Roar" and "Dark Horse."

Last week, PRISM sold, 51,000 copies which brought the total sales to be over 1 million, Billboard reported. PRISM sold 1 million albums in 11 weeks.

The album success was spurred on by "Roar" spending two weeks at number one on Billboard's top 100 charts.

Perry's past two albums, One of the Boys and Teenage Dream, both sold over 1 million copies. Teenage Dream produced five chart topping singles. If PRISM follows suit, the album sales could continue to grow.

Perry is keeping the momentum going for PRISM with her latest single, "Dark Horse." She just released the album art for fans on her Twitter account, The Huffington Post added. The song has already been climbing on the Billboard charts and features Juicy J.

Watch the video for "Roar" here:

Listen to "Dark Horse" here:

image: Wikimedia Commons