*With Afrojack's "The Spark" graduating to our Top Hip Hop and R&B Chart, the former runner-up, Kat Dahlia's "Mash It Up," climbs to first. T-Pain's "Up Down" rises from fourth to take the latter's place in second.
*New this week, N.A.S.A.'s "Hide (A.Skillz Remix)," Tyga's "Throw It Up" and Chris Webby's "Do Like Me" enter the chart in 16th, 17th and 20th.
*Pitbull's "Timber" drops from our Top Picks, landing in third.
*Emerson Brooks's "The Ballad of a Nightwalker" and R. Kelly's "My Story" make their exit from our charts.
*Juicy J.'s "Bounce It," Scoe's "B*tch I Ball" and Azealia Banks's "ATM Jam" narrowly miss appearing on the chart. Your feedback and ratings will determine whether they make the cut next week!