Baby One More Time Video (MV)

"...Baby One More Time" is the debut single by American singer Britney Spears from her debut studio album of the same title (1999). It was written by Max Martin and produced by Martin and Rami. Released on September 29, 1998, by Jive Records, the song became a worldwide hit, topping the charts in over 20 countries, including the United States and the United Kingdom, where it earned quintuple and triple-platinum certifications from the Recording Industry Association of America and the British Phonographic Industry (BPI), respectively, and was the latter's best-selling single of 1999. The song is one of the best-selling singles of all time, with over 10 million copies sold.

An accompanying music video, directed by Nigel Dick, features Spears as a high-school student who starts to sing and dance around the school, while watching her love interest from afar. In 2010, the music video for "...Baby One More Time" was voted the third most influential video in the history of pop music, in a poll held by Jam!. In 2011, "...Baby One More Time" was voted by Billboard to be the best music video of the 1990s. It has been featured on all of her greatest hits and other compilation albums. In 2020, Rolling Stone named "...Baby One More Time" as the greatest debut single of all time. In 2021, the song was ranked at number 205 on the list of Rolling Stone's 500 Greatest Songs of All Time.

Spears has performed "...Baby One More Time" in a number of live appearances and during all of her concert tours. The song was nominated for Best Female Pop Vocal Performance at the 42nd Annual Grammy Awards (2000), and has been included in lists by Blender, Rolling Stone and VH1. It has been noted for redefining the sound of late 1990s music. Spears has named "...Baby One More Time" as one of her favorite songs from her catalog. It was also the final song to be played on the BBC's music programme Top of the Pops in the 1990s.

It is also featured in the 2011 dance video game by Ubisoft, Just Dance 3. In 2018, readers of German teen magazine Bravo voted "...Baby One More Time" to be the biggest hit since its first music compilation was released in 1992.