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
Age Ain't Nothing but a Number (song) released as the third single (and final single in the United States) from the album and became her first single in the US to miss the top 10, peaking at number 75 on the US "Billboard" Hot 100 and number 32 on the UK Singles Chart. "Age Ain't Nothing but a Number" has been described as a "soulful ballad" with Aaliyah "crooning of longing for an older lover". The song opens with "Aaliyah's spoken voice noting her daily diary entry" and it is "coupled with a delicate guitar-piano interplay that echoes the urgency of her performance". It also features a