For the fifth week straight in a row, RCA's Mark Ronson "Uptown Funk" will hold the #1 position on the chart. Big Machine/Republic's Taylor Swift is the Greatest Gainer again and moves Top 5 with "Style". RCA's Pitbull "Time of Our Lives" f/Ne-Yo contiues to climb and Roc Nation's Rihanna/Kanye/McCartney "FourFiveSeconds" joins the Top 10. Republic's Ariana Grande "One Last Time" moves Top 25 and Capitol's Tori Kelly "Nobody Love" takes a big jump into the Top 30. And while there aren't many changes in the top tiers of the chart there are several songs debuting this week, Capitol's Sam Smith "Lay Me Down", Live Nation/Interscope Madonna "Livin For Love", Warner Bros. Echosmith "Bright", Columbia's Olly Murs "Wrapped Up" f/Travie McCoy and RCA's Walk the Moon "Shut Up And Dance".