"Mambo No. 5" is a popular song originally composed by Lou Bega in 1999. It features a catchy melody and a blend of jazz and pop elements. The song's lyrics describe the singer's romantic interests in several women, each named in a playful manner. The track became a major hit worldwide, reaching the top of the charts in multiple countries. Its infectious rhythm and upbeat vibe contributed to its lasting popularity, making it a staple at parties and events. The song is often associated with the Mambo dance style, which adds to its lively appeal.