New Katy Perry song leaks, sounds similar to Sara Bareilles

Singer Katy Perry arrives at the world premiere of "The Smurfs 2" at the Regency Village Theatre on Sunday, July 28, 2013 in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Katy Perry’s latest song, “Roar” leaked two days before its scheduled release on August 12, and fans can expect a new musical approach from the pop star.

The track will be the leading single from the singer’s third studio album, Prism, which is set to drop on October 22.

Perry revealed the song's artwork on Thursday before the full internet leak. The song's art cover shows Perry in a wild, tiger-striped portrait, which appropriately complements the song's title and may allude to a new look during her anticipated Prism era.

Bonnie McKee, co-writer of "Roar," explains to MTV that Perry's sound is "definitely different," as the new album will be "a little more mature than the 'California Gurls' of yesterday."

Shortly after the song leak, listeners noticed strong similarities between Perry’s song and singer Sara Bareilles’ “Brave,” which was released months before on April 23.

What is worth noting is that the “Firework” singer tweeted about “Brave” in May, posting: “I heart you @SaraBareilles” with a link to Bareilles’ track. A possible reference to her upcoming single, perhaps?

Perry has yet to comment about the tweet and subsequent accusation, but it's possible that this might just be a coincidence.

Bareilles, whose hits include “Love Song” and “King of Anything,” responded to the plagiarism accusation with a classy, yet ambiguous tweet, saying on August 10: “All love, everybody. All love.”

You can listen to "Roar" here.