Williams became more well-known worldwide during 2013 and 2014, when he was featured on Robin Thicke's single "Blurred Lines" with T.I. (which he produced) and released his own single, "Happy", for the movie "Despicable Me 2". Both songs reached number one in several countries around the world, including the US, UK, Canada, and Australia. He was also featured on Daft Punk's single "Get Lucky", another international chart-topper.