Pharrell Williams’ ‘Happy’ revealed as the UK’s best selling track of this decade with 1,813,000 sales

Not only did the singer grab the number one spot, he also features at number two with his ‘Blurred Lines’ collaboration with Robin Thicke selling 1,630,000 copies. As if this wasn’t enough, he has also made an appearance at No. 6 on Daft Punk’s ‘Get Lucky’.