Madonna is the second mini-album by South Korean girl group Secret. It was released on August 12, 2010 through TS Entertainment, and contains five tracks. The mini-album debuted at number 5 on the Gaon Album Chart on August 12. "Madonna", the album's lead single, debuted at number 1 on South Korea's Gaon Singles Chart and sold over 1,839,869 digital copies in South Korea within the year of 2010. Kang Jiwon and Kim Kibum, the composers who wrote "Madonna" highlighted that the inspiration behind the song is about living with confidence by becoming an icon in this generation, like the American singer Madonna.
"Madonna" was first used as a promotional track from the album. On August 5, 2010, a teaser video was released online. In the teaser, the girls were performing the album track "Empty Space". The final music video premiered on August 12, 2010 along with Madonna's release. Secret had their debut performances of "Madonna" on Mnet's M! Countdown, KBS's Music Bank, MBC's Show! Music Core and SBS's Inkigayo from August 12 to August 15.