William Omar Landrón Rivera (born February 10, 1978), known professionally as Don Omar, is a Puerto Rican singer. He is also known as the "King of Reggaeton" by music critics and fans alike. The artist was recognized by Billboard and Rolling Stone as one reggaeton legend. He is often cited as an influence by other Hispanic urban performers.

Landrón was born in Santurce, a neighborhood of San Juan, Puerto Rico. He is one of the artists credited with presenting reggaeton to audiences around the world and having turned the musical genre into a global phenomenon. He jumped to stardom with the release of his first studio album, The Last Don, released in 2003. The album sold 411,000 units in the US and was certified gold by the Recording Industry Association of America (RIAA). Since then, he has sold around 15 million records, making him one of the best-selling Latin music artists. On September 1, 2017, after a long musical career he announced that he would retire after a series of concerts at the José Miguel Agrelot Coliseum in Puerto Rico, scheduled to be held on December 15, 16 and 17. However, he returned to music on April 20, 2019 with his song single "Ramayama" featuring Farruko.

During his career, Don Omar earned numerous accolades, including three Latin Grammy Awards, one Billboard Music Awards, 17 Billboard Latin Music Awards, three Lo Nuestro Awards, eight Viña del Mar International Song Festival Awards, among others.

Don Omar has also portrayed Rico Santos in four films in the Fast & Furious franchise. He first played the character in 2009's Fast & Furious and then returned for Fast Five (2011), The Fate of the Furious (2017) and F9 (2021).