Chart Date Position Australia Top 20 2008-10-04   37 2008-10-11   35 2008-10-18   36 2008-10-25   33 2008-11-01   26 2008-11-08   26 2008-11-15   23 2008-11-22   20 2008-11-29   23 2008-12-06   26 2008-12-13   27 2008-12-20   20 2008-12-27   22 2009-01-03   22 2009-01-10   30 2009-01-17   33 2009-01-24   40 Canada Top 20 2008-09-19   35 2009-01-02   38 Finland Top 20 2009-01-18   17 Taiwan Top 10 2009-07-27   6 Japan Top 20 2008-12-21   10 2009-01-04   12 2009-01-11   16 2009-01-18   18 Muchmusic Top 30 2008-10-04   28 2008-10-11   25 2008-10-18   20 2008-10-25   14 2008-11-01   10 2008-11-08   5 2008-11-15   3 2008-11-22   2 2008-11-29   1 2008-12-06   8 2008-12-13   16 2008-12-27   16 UK Singles Top 40 2008-09-21   40 USA Singles Top 40 2008-09-27   21 2008-10-04   29 2008-10-11   33 2008-10-18   40 2009-01-03   34 2009-01-10   38 2009-01-17   38 2009-01-24   40 World Singles Official Top 100 2009-01-03   24 2009-01-10   90 2009-01-17   22 2009-01-24   34 2009-01-31   51 Airplay World Official Top 100 2008-10-18   92 2009-01-03   47 2009-01-10   98 2009-01-17   34 2009-01-24   39 2009-01-31   55

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