"Roar" is a song by American pop singer-songwriter Katy Perry. The lyrics are about standing up for oneself and self-empowerment.
The song received mixed reviews from critics. "Roar" became Perry's eighth number-one hit song on the Billboard Hot 100. The song also topped charts internationally, in countries such as Canada, the United Kingdom, and Australia, where "Roar" became the bestselling song of 2013.
The song was released on August 10, 2013.