A dominant force in hip-hop music for over three decades, Dr. Dre was a former member of the groundbreaking and controversial group N.W.A., which helped to foment the gangsta rap scene, before assuming his own successful career as a solo artist and producer for such chart-topping acts as Eminem, Snoop Dogg, 50 Cent and countless others. Dre was also instrumental in the development of the "G-funk" sound, a West Coast-style of rap that featured deep bass grooves, samples from George Clinton's vast musical output, and multi-layered synthesizer lines. Such artists as Snoop Dogg, Tupac Shakur and Dre's own stepbrother, Warren G, rode the G-funk style to unparalleled success during the 1990s. After a discordant relationship with the notorious Death Row Records, which released his hugely popular Chronic album in 1992, Dre launched his own label, Aftermath, which soared on the strength of albums by Eminem and 50 Cent. The windfall from his producing efforts and solo career made Dre the third richest figure in hip-hop, with an estimated wealth of over $250 million. With the new millennium, Dre focused more intently on production while laboring over his final solo effort, Detox, which remained unreleased after more than a decade of work. Despite this delayed release, Dre remained one of rap's most important figures, an artist who changed the course of the genre with a single album, as well as a key component of some of its most landmark albums.