"Buy U a Drank (Shawty Snappin')" is a song by American singer/rapper/producer T-Pain. It was released on February 20, 2007. The song is the first official single from T-Pain's album Epiphany. The song also features rapper Yung Joc.

It's noted for having many references to other popular dance/rap songs. Lil Scrappy's song "Money in the Bank" is referenced in the chorus with the line, "I got money in the bank / Shawty what you think about that". At the beginning, you hear the line, "Snap yo fingers, do your step, you can do it all by yourself", a lead line from the Lil Jon song, "Snap Yo Fingers". Also he states "back to the crib, show you how I live" refers to 50 Cent's "Just a Lil Bit". At the end of the second verse, T-Pain says 'On That Patron You Should Get Like Me', referencing Yung Joc's "Patron" off his album New Joc City. Later on in the song, T-Pain takes a line from the single by Unk, "Walk It Out" when he says, "...Walk it out." The music video premiered on April 9, 2007 on MTV and features cameos from various artists such as E-40, Gorilla Zoe, Huey, Tay Dizm, Shawnna, Jay Lyriq, Kardinal Offishall, and many others. This song was #63 on Rolling Stone 's list of the 100 Best Songs of 2007.

The song debuted on the Billboard Hot 100 at number 84 on the issue date of March 10, 2007. On the issue date of May 12, 2007 the single became T-Pain's first and Yung Joc's second number 1 single on Billboard's Hot R&B/Hip-Hop Songs chart. On the same Billboard magazine issue date, "Buy U a Drank (Shawty Snappin')" became T-Pain's highest charting single on the Billboard Hot 100 to date, surpassing the number 5 peak of "I'm N Luv (Wit A Stripper)". On the issue date of May 26 2007, "Buy U a Drank (Shawty Snappin')" reached number 1, becoming T-Pain as well as Yung Joc's first number 1 single on the Billboard Hot 100.

An official remix on the single also features Kanye West, UGK and Trey Songz.