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"Katy Perry has continued her lead on the Billboard Hot 100 with &amp;#039;Dark Horse&amp;#039;. The track leads the tally for a third consecutive week, holding off strong competition from Pharrell Williams&amp;#039; &amp;#039;Happy&amp;#039;, which leaps from eight to two.  Meanwhile, Jason Derulo lifts four to three with &amp;#039;Talk Dirty&amp;#039;, A Great Big World move seven to four with &amp;#039;Say Something&amp;#039;, and Bastille re-enter the top ten at ten.  Further down the chart, John Legend climbs 17 to 15 with &amp;#039;All Of Me&amp;#039;, Idina Menzel&amp;#039;s &amp;#039;Let It Go&amp;#039; moves 24 to 18, and Avicii bounces from 37 to 30 with &amp;#039;Hey Brother&amp;#039;. Demi Lovato bounds from 64 to 46 with &amp;#039;Neon Lights&amp;#039;, The Fray leap 81 to 60 with &amp;#039;Love Don&amp;#039;t Lie&amp;#039;, and The Arctic Monkeys reach a new peak at 76 with &amp;#039;Do I Wanna Know?&amp;#039;. The Billboard Hot 100 top ten singles appear below (click where possible for our reviews): 1. (1) Katy Perry ft. Juicy J: &amp;#039;Dark Horse&amp;#039; 2. (2) Pharrell Williams: &amp;#039;Happy&amp;#039; 3. (4) Jason Derulo ft. 2 Chainz: &amp;#039;Talk Dirty&amp;#039; 4. (7) A Great Big World &amp;amp; Christina Aguilera: &amp;#039;Say Something&amp;#039; 5. (6) Passenger: &amp;#039;Let Her Go&amp;#039; 6. (3) Pitbull ft. Ke$ha: &amp;#039;Timber&amp;#039; 7. (5) OneRepublic: &amp;#039;Counting Stars&amp;#039; 8. (2) Beyonc\u00C3\u00A9 ft Jay Z: &amp;#039;Drunk In Love&amp;#039; 9. (10) Lorde: &amp;#039;Team&amp;#039; 10. (11) Bastille: &amp;#039;Pompeii&amp;#039;  Watch Katy Perry perform &amp;#039;Dark Horse&amp;#039; live at The Grammys below:       "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/music/us-billboard-chart/news/a551066/katy-perrys-dark-horse-extends-billboard-chart-reign-at-number-one/>