Platinum-selling Liam has sold more than 18 million singles in just two years as a solo artist since leaving One Direction. His global smash hit debut single `Strip That Down' featuring Quavo sold a huge 11.5 million copies worldwide and has been streamed over 1.8 billion times, while latest single Polaroid sold two million copies. Liam has been streamed a staggering total of 2.7 billion times, making him the most successful solo artist of any current One Direction member.