Happy sold over 107,000 copies to occupy the top spot for a second non-consecutive week,having dethroned by Timber the previous week.Pharell Williams had scored the two biggest-selling singles of 2013.
Among the fastest climbers in the singles chart was Beyoncé,whose "Drunk In Love", a collaboration with her husband Jay Z,jumped 17 places to take the number 10 spot. It was Beyoncé's 16th top 10 hit in Britain.
British singer-songwriter Ellie Goulding held onto the number one spot in the official albums chart for a second week with "Halcyon", keeping Beyoncé's self-titled album at bay in second place.
Goulding who performed at the wedding reception of Prince William and Kate Middleton in 2011,was enjoying a good week after she was nominated on Thursday for three BRITs, the top music awards in Britain.
