"21 Questions" is a song by American rapper 50 Cent, featuring guest vocals from American singer Nate Dogg. Released in March 2003 through Interscope Records, Dr. Dre's Aftermath Entertainment, Eminem's Shady Records, and 50 Cent's own G-Unit Records as the second single from 50 Cent's debut studio album Get Rich or Die Tryin', it differs from his previous singles and most of the songs on the album by being an R&B-influenced love song, largely themed around a series of questions pertaining to a relationship between 50 Cent and an unnamed girlfriend, and contains elements of Barry White's 1978 song "It's Only Love Doing Its Thing".