"Dark Horse" is a song by American singer Katy Perry featuring rapper Juicy J. It was released in September 2013 as the lead single from Perry's fourth studio album, "Prism". The song was written by Perry, Juicy J, Lukasz Gottwald, Max Martin, and Henry Walter, and produced by the latter three. "Dark Horse" is a song with a mid-tempo beat that incorporates elements of Southern hip hop, gospel, and funk music. The lyrics of the song tell the story of a woman who seduces a man who is in a committed relationship with someone else.

The song was a commercial success, reaching number one in several countries, including the United States, Canada, Australia, and New Zealand. It also won several awards, including the American Music Award for Song of the Year and the MTV Video Music Award for Best Collaboration. "Dark Horse" has been certified multi-platinum in several countries, and has sold over 12 million copies worldwide.

The song has also been the subject of much controversy, with some people accusing Perry of promoting Christianity in the song. In an interview with Billboard, Perry said that the song is not about Christianity, but rather about a woman who seduces a man who is in a committed relationship with someone else. She added that the song is about "taking risks and having fun with it".

Despite the controversy, "Dark Horse" remains one of Perry's most popular songs. It has been praised for its catchy melody, infectious beat, and empowering lyrics. The song has also been covered by several artists, including Iggy Azalea, T.I., and Chris Brown.

The success of "Dark Horse" is a testament to the power of the underdog. Perry was not the first artist to release a song with a religious theme, but she was the one who was able to capitalize on the trend and create a hit. The song was also helped by the fact that it was released during a time when Southern hip hop was becoming increasingly popular, and it was able to crossover to mainstream audiences.

The song is also a reminder that success is not always determined by talent or skill. Sometimes, it's about being in the right place at the right time and being able to capitalize on a trend. Perry was able to do this with "Dark Horse", and it was this ability that made her one of the most successful pop stars of her generation.

In conclusion, "Dark Horse" is a song that has had a significant impact on popular culture. It is a reminder that success is not always determined by talent or skill, but rather by being in the right place at the right time and being able to capitalize on a trend. The song is also a testament to the power of the underdog, and it serves as an inspiration to those who aspire to achieve greatness.