Which singer released the hit single 'Roar' in 2013?

The singer who released the hit single “Roar” in 2013 was Katy Perry.

“Roar” was released as the lead single from Perry's fourth studio album, Prism. The empowerment-themed pop song was co-written by Perry with Bonnie McKee, Dr. Luke, Max Martin, and Cirkut, and it became one of the defining mainstream hits of 2013. Its lyrics focus on finding confidence and standing up for oneself.

The single reached number one on the US Billboard Hot 100, giving Perry her eighth chart-topper there. It also topped charts in countries including Australia, Canada, New Zealand, and the United Kingdom. Perry first performed the song publicly at the 2013 MTV Video Music Awards. A common mix-up is associating “Roar” with other major female pop stars of the decade, especially Miley Cyrus, Rihanna, or Taylor Swift, but the recording and release are credited to Perry.