Biggest-selling digital single in one year

In 2013, Robin Thicke's (USA/Canada) controversial single "Blurred Lines" sold 14.8 million digital copies worldwide, according to figures published in the International Federation of the Phonographic Industry's (IFPI) annual report. Pharrell Williams' "Happy" (13.9 million digital copies sold in 2014), Ke$ha's "TiK ToK" (12.8 million in 2010), Bruno Mars' "Just the Way You Are" (12.5 million in 2011) and Carly Rae Jepsen's "Call Me Maybe" (12.5 million in 2012) complete the IFPI's list of the Top 5 biggest sellers worldwide in a single year. The world-conquering success of "Blurred Lines" in 2013 was revealed in the IFPI Digital Music Report 2014. The second biggest-selling digital single worldwide in 2013 was "Thrift Shop" by Macklemore & Ryan Lewis feat. Wanz, with sales of 13.4 million.

Featuring T.I. (Clifford Harris Jr) and Pharrell Williams, "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.

"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 No.1 from 22 June to 7 September 2013.

In the week ending 24 August 2013, "Blurred Lines" registered a record 228.9 million all-format audience impressions on Billboard's Radio Songs chart, smashing the Nielsen BDS radio record previously held by Mariah Carey's "We Belong Together" (212.2 million impressions on 9 July 2005).