"Rich Girl" is a song by American singer and songwriter Gwen Stefani from her debut solo studio album, Love. Angel. Music. Baby. (2004). Produced by Dr. Dre, the track features American rapper Eve, and is a remake of Louchie Lou & Michie One's 1993 song of the same name, which is in turn an adaptation of the Fiddler on the Roof song "If I Were a Rich Man". Stefani says the song discusses her dreams of fame and riches from the perspective of "when she was just an Orange County girl".

The last song to be included on the album, "Rich Girl" was released as the album's second single in late 2004 to mixed reviews from music critics. It was a commercial success, reaching the top 10 on most of the charts it entered. In the United States, "Rich Girl" was certified gold, and it received a nomination for Best Rap/Sung Collaboration at the 47th Grammy Awards.

Stefani and Eve had previously collaborated on the 2001 single "Let Me Blow Ya Mind". When Stefani first began recording solo material, Eve expressed interest in working with Stefani again, saying, "She's fly, she's tight and she is talented. It's going to be hot regardless." The two decided to work together again after talking in Stefani's laundry room during a party. After Stefani had co-written more than 20 songs for her solo debut, she approached Dr. Dre, who had produced for her twice before. Dre had produced "Let Me Blow Ya Mind" as well as "Wicked Day", a track that was excluded from No Doubt's 2001 album Rock Steady.

After playing some of the songs on which she had been working, Dr. Dre told her, "You don't want to go back there." Instead of using one of the tracks, Dr. Dre instead suggested using English reggae duo Louchie Lou & Michie One's 1993 song "Rich Girl", which itself interpolated "If I Were a Rich Man" from the 1964 musical Fiddler on the Roof. Stefani and Eve helped each other with their parts, but when they presented Dr. Dre with the demo, he told them to rewrite the song, suggesting that Stefani play a character in the song.

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