"Roar" is a song by Katy Perry. It is her first single from her fourth studio album, Prism, and is also one of her most popular songs. In addition, it is a great anthem that celebrates self-empowerment.

The song contains a few interesting literary devices. Some of the devices include onomatopoeia, hyperbole and the best of all, the trippy-mood-inducing eye of the tiger.

While the "single's" "Mirror-Mirror" has become a cliche, the "eye of the tiger" is actually a reference to Survivor's "Eye of the Tiger" from the 1982 boxing film Rocky III. As for the tiger, he is not a real tiger, but a mascot.

The tiger is not a lion, but a reference to Perry's own cat. The "Roar" is a rousing song that is a good example of what makes her stand out.

While not a particularly long track, it's the longest song on the Prism album. Also, it was a huge hit in Australia and the United States. It was the country's best-selling female song in 2013.

For the record, the Eye of the Tiger is located here. A clever use of the allusion is to write a song around the phrase.

"Roar" has been credited with becoming the first woman-centred video to reach 3 billion views on YouTube. Katy Perry's "Roar" was even nominated for a Song of the Year award at the 56th Annual Grammy Awards.

There's a good chance you've already heard "Roar". But have you ever noticed what it's all about?