We can't say we're too surprised.
Mark Ronson and Bruno Mars’ track Uptown Funk had been named as the biggest selling single of 2015 to date.
The duo’s song, which first came to prominence when Fleur East performed it on the live shows of the X Factor last autumn, has truly been a smash hit since its release.
The song has spent six weeks at number one and has been streamed over 26 million times.
In second place is Ellie Goulding’s Love Me Like You Do.
