Peter Gene Hernandez (born October 8, 1985), known professionally as Bruno Mars, is an American singer-songwriter, multi-instrumentalist, record producer, and dancer. Born and raised in Honolulu, Hawaii, Mars moved to Los Angeles in 2003 to pursue a musical career. After being dropped by Motown Records, Mars signed a recording contract with Atlantic Records in 2009. In the same year, he co-founded the production team The Smeezingtons, responsible for various successful singles for Mars himself and other artists. In 2016, Shampoo Press & Curl replaced The Smeezingtons on the composition of Mars' third studio album, 24K Magic.

Mars rose to fame in 2010 with the release of the successful singles "Nothin' on You" by B.o.B and "Billionaire" by Travie McCoy, both of which featured his vocals on the hooks. His debut studio album Doo-Wops & Hooligans (2010) peaked at number three on the US Billboard 200 and reached the top in Canada, Germany, Ireland, Netherlands and in the United Kingdom albums charts. It spawned the international number-one singles "Just the Way You Are", "Grenade" and "The Lazy Song". The former won a Grammy Award for Best Male Pop Vocal Performance. In 2011, Mars recorded the thriving single "It Will Rain" for The Twilight Saga: Breaking Dawn – Part 1.

Mars' second album, Unorthodox Jukebox (2012), peaked at number one on the US Billboard 200, Australia, Canada, Switzerland, and in the UK, winning a Grammy Award for Best Pop Vocal Album. Its singles "Locked Out of Heaven" and "When I Was Your Man" reached number one on the US Billboard Hot 100, while "Treasure" peaked at number five. In 2014, Mars collaborated with Mark Ronson on "Uptown Funk", which topped many music charts worldwide, including the US, Australia, Canada, New Zealand and UK. His third studio album, the R&B-focused 24K Magic (2016), debuted at number two in the United States, Canada, and New Zealand. It received seven Grammy Awards, including major categories Album of the Year, Record of the Year, and Song of the Year and yielded the successful singles "24K Magic", "That's What I Like" and "Finesse".

Mars has sold over 130 million records worldwide, making him one of the best-selling artists of all time. He has released seven number-one singles on the Billboard Hot 100 since his career launched in 2010, attaining his first five faster than any male artist since Elvis Presley. Mars has received many awards and nominations, including eleven Grammy Awards, three Brit Awards, three Guinness World Records, and was named one of Time's 100 most influential people in the world in 2011. In December 2013, he ranked number one on the Forbes 30 under 30 list. Mars is known for his stage performances and retro showmanship. He is accompanied by his band, The Hooligans, who play a variety of instruments such as electric guitar, bass, piano, keyboards, drums and horns, and also serve as backup singers and dancers. Mars performs in a wide range of musical styles.