Highest weekly audience impressions for a single

With 228.9 million all-format audience impressions registered on Billboard's Radio Songs chart for the week ending 24 August 2013, "Blurred Lines" by Robin Thicke (USA/Canada) smashed the Nielsen BDS radio record previously held by Mariah Carey's "We Belong Together" (212.2 million impressions on 9 July 2005). This record was actually broken the week before, 17 August 2013, when "Blurred Lines" registered 219.8 million audience impressions. It extended its record to 228.9 million on 24 August 2013.

Featuring T.I. (Clifford Harris, Jr) and Pharrell Williams (both USA), "Blurred Lines" spent 12 consecutive weeks at No.1 on the US Hot 100 and went on to become the fastest-selling digital single, with five million copies sold in 22 weeks and six million in 29 weeks – in each case a week sooner than "Somebody That I Used to Know", a hit for Gotye and Kimbra in 2012.

Billboard's Radio Songs chart was launched in December 1990.

"Blurred Lines" was also the first song to sell 400,000 digital copies in the USA in four successive weeks (weeks 6-9 of its 12-week stay at the top of the Hot 100). The track was Number 1 from 22 June to 7 September 2013.

BDS stands for Broadcast Data Systems and Nielsen BDS is the tracking service favoured by Billboard (over Mediabase) for its radio/airplay charts. Nielsen BDS should always be used when comparing records in this category.