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"Katy Perry has spent a fourth consecutive week at number one on the Billboard Hot 100 with &amp;#039;Dark Horse&amp;#039;. The track sits firmly at the top of the chart, while Pharrell Williams&amp;#039;s &amp;#039;Happy&amp;#039; remains tight at number two.  Jason Derulo is at three with &amp;#039;Talk Dirty&amp;#039;, A Great Big World and Christina Aguilera are at four with &amp;#039;Say Something&amp;#039; and Beyonc\u00C3\u00A9 rebounds to five with &amp;#039;Drunk In Love&amp;#039;. Bastille reach a new peak of eight with their US debut single &amp;#039;Pompeii&amp;#039;, while John Legend&amp;#039;s &amp;#039;All Of Me&amp;#039; advances to 11. Kid Ink and Chris Brown&amp;#039;s &amp;#039;Show Me&amp;#039; climbs to 17, &amp;#039;Let It Go&amp;#039; from Disney&amp;#039;s Frozen remains at 18 and Miley Cyrus&amp;#039;s &amp;#039;Adore You&amp;#039; continues to climbs at 21. John Newman&amp;#039;s &amp;#039;Love Me Again&amp;#039; is up to number 30, Martin Garrix is at 37 with &amp;#039;Animals&amp;#039; and further down the chart, Tegan and Sara&amp;#039;s LEGO movie track &amp;#039;Everything is AWESOME!!!&amp;#039; is at 62. 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. (3) Jason Derulo ft. 2 Chainz: &amp;#039;Talk Dirty&amp;#039; 4. (4) A Great Big World &amp;amp; Christina Aguilera: &amp;#039;Say Something&amp;#039; 5. (8) Beyonc\u00C3\u00A9 ft Jay Z: &amp;#039;Drunk In Love&amp;#039; 6. (7) OneRepublic: &amp;#039;Counting Stars&amp;#039; 7. (6) Pitbull ft. Ke$ha: &amp;#039;Timber&amp;#039; 8. (10) Bastille: &amp;#039;Pompeii&amp;#039; 9. (9) Lorde: &amp;#039;Team&amp;#039; 10. (5) Passenger: &amp;#039;Let Her Go&amp;#039; Watch Katy Perry perform &amp;#039;Dark Horse&amp;#039; live at The Brits below:       "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/music/news/a552675/katy-perrys-dark-horse-spends-fourth-week-at-no1-in-us/>