Who Knew - P!nk

  • Entered the US chart on 07 April 2007 and spent 2 weeks in the charts, reaching a high of number 95.
  • Entered the UK chart on 28 May 2006 and spent 34 weeks in the charts, reaching a high of number 5.
  • Re-entered the US chart on 07 July 2007 and spent 34 weeks in the charts, reaching a high of number 9.