Mambo No. 5 the song debuted at number one on the UK Singles Chart, becoming Bob the Builder's second number-one single there after "Can We Fix It?". The song experienced major success in Australia and Ireland. In the former country, the song debuted at number three on the ARIA Singles Chart on 4 November 2001 and reached number two on 18 November, held off the top spot by Alien Ant Farm's cover of "Smooth Criminal". After staying at number two for another week, the song began to leave the chart, spending nine more weeks in the top 50. In Ireland, the song first
Number One (R. Kelly song) Number One (R. Kelly song) "Number One" is the first single featuring Keri Hilson from American R&B singer R. Kelly's 2009 album, "Untitled". The song was released digitally on July 28, 2009. The music video was released on August 17, 2009. In the video, Kelly and Hilson wear Michael Jackson-inspired jackets and pay tribute to the late King of Pop in the Chris Robinson-directed clip. The video was listed number #92 on BET notarized top 100 videos. The official remix features R&B singers T-Pain and Keyshia Cole. It was released September 29, 2009 on Kelly's YouTube account and the internet.