T-Pain's "Buy U a Drank (Shawty Snappin')" climbs 3-1 on the Billboard Hot 100 to earn the Florida native his first chart-topper there. The cut is the chart's greatest airplay gainer for a seventh straight week, the longest such streak since Beyonce's "Baby Boy" featuring Sean Paul had an equal run in 2003. "Drank" is also No. 1 on Hot R&B/Hip-Hop Songs for a third week in a row.
