Hybrid Theory is the debut album by American rock band Linkin Park, released on October 24, 2000 through Warner Bros. Records. The album was a huge commercial success, having sold over 10 million units in the United States alone as of 2010 and peaking at number two on the Billboard 200 while also reaching high positions on other charts worldwide. Hybrid Theory brought Linkin Park into the mainstream and would ultimately become one of the most well respected American rock albums of the early 2000s.
Recorded at NRG Recordings in North Hollywood, California, and produced by Don Gilmore, the album's lyrical themes deal with problems lead vocalist Chester Bennington experienced during his adolescence, including drug abuse and the constant fighting and divorce of his parents. Hybrid Theory takes its title from the previous name of the band.
Four singles were released from the album: "One Step Closer", "Papercut", the Grammy Award-winning "Crawling" and "In the End", the latter which was responsible for launching Linkin Park into mainstream popularity. At the 2002 Grammy Awards, Hybrid Theory was nominated for Best Rock Album. The album is listed in the book 1001 Albums You Must Hear