With a 15th week atop Hot R&B/Hip-Hop Songs, Robin Thicke's "Blurred Lines" (featuring T.I. and Pharrell) ties the Nielsen-era record for the chart's longest No. 1 run. Since the chart migrated to monitored airplay by Nielsen BDS and SoundScan sales data in December 1992, only Mary J. Blige's "Be Without You" can claim to have had such a lengthy stay at the top (also 15 weeks).
In order for "Blurred Lines" to gain sole possession of the record next week, it will have to fend off Jay Z's "Holy Grail" -- which stays put at No. 2 for a sixth of its 11 chart weeks – and Eminem's surging "Berzerk" (4-3).
With R&B/hip hop ariplay they combine urban and UAC airplay, so Blurred Lines could be #1 for a while longer. That's how Adorn got so long, because UAC just kept playing it forever, whilst some of the songs get played on urban but not much on UAC.
was it 16 weeks?