Lyrically, the song talks about battling the music and the pleasures of letting go on the dance-floor.
The song was a commercial success, peaking atop of the charts in countries such as Australia, Denmark, Hungary, Ireland and Spain, as well as the European Hot 100 Singles.
The track peaked at number two in Canada, Italy, Norway and the United Kingdom, and inside the top five in many other nations.
The song won the "Hot Dance Single of the Year" accolade at the 2004 Billboard Music Awards.
Spears has performed the song in a number of live appearances including the 2003 NFL Kickoff Live, Saturday Night Live, 2003 American Music Awards and TRL.