"Nuthin' But a 'G' Thang" is a duet by American rapper Dr. Dre and rapper Snoop Doggy Dogg from Dre's debut solo album, The Chronic (1992). It is the first single from the album. "Nuthin' but a 'G' Thang" reached number two on the Billboard Hot 100, behind "Informer" by Snow, outperforming The Chronic's other singles, "Fuck wit Dre Day (and Everybody's Celebratin')", which peaked at #8, and "Let Me Ride", which peaked at #34. The single also reached #1 on Billboard's Hot R&B/Hip-Hop Singles & Tracks chart, and was a hit in the UK, where it reached #31.

The song was selected by the Rock and Roll Hall of Fame as one of the 500 songs that shaped rock and roll.XXL magazine named it the top hip-hop song of the decade. The song samples "I Want'a Do Something Freaky to You" by Leon Haywood. It was later reissued in June 1994 in certain European countries.

The vocals are shared by Dre and Snoop Doggy Dogg, who has sole songwriting credit; they drop in trademark references to Long Beach and Compton, California. The song contains samples from Leon Haywood's "I Want'a Do Something Freaky To You", "B-Side Wins Again" by Public Enemy and "Uphill (Peace of Mind)" by Kid Dynamite. On the inside cover of The Chronic, under "Credits", Haywood's name is incorrectly given as "L. Hayward". Snoop Dogg's first single from Da Game Is to Be Sold, Not to Be Told was a sequel to the song titled "Still a G Thang". Dre and Snoop retooled "Nuthin' but a 'G' Thang" into the titular theme of their 2001 comedy film The Wash.

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