'til The World Ends - Britney Spears featuring Nicki Minaj & Ke$ha
- Entered the US chart on 19 March 2011 and spent 24 weeks in the charts, reaching a high of number 3.
- Entered the UK chart on 13 March 2011 and spent 3 weeks in the charts, reaching a high of number 21.
- Re-entered the UK chart on 17 April 2011 and spent 11 weeks in the charts, reaching a high of number 22.