Each receive a major consumer-influenced face-lift, as digital download sales (tracked by Nielsen SoundScan) and streaming data (tracked by Nielsen BDS from such services as Spotify, Muve, Slacker, Rhapsody, Rdio and Xbox Music, among others) will now be factored into the 50-position rankings, along with existing radio airplay data monitored by Nielsen BDS.
The immediate beneficiaries of this week's methodology change are Taylor Swift & Rihanna.
Swift, who holds down the top two slots on Hot Country Songs with "We Are Never Ever Getting Back Together" and "Red." Her new country radio single "Begin Again" jumps 37-10.
Rihanna shuffles from No. 66 under the former Hot R&B/Hip-Hop Songs methodology all the way to No. 1 with "Diamonds," aided by crossover pop airplay of the track as well as strong digital sales (No. 1 on R&B/Hip-Hop Digital Songs).