Timberlake is venturing into many new areas, including acting.
According to ITV, the star is teaming with his good friend Trace Ayala to create the clothing collection. Ayala is Timberlake’s personal assistant.
Justin said: "This clothing is representative of where we come from – it’s sort of country, but it’s also got a little edge and a little chic to it."
The clothing line will be called William Rast in honour of their grandparents.
Justin added: "We just kind of picked the two people who are most influential in our lives, and that’s our grandfathers. William is my grandfather’s first name and Rast is Trace’s grandfather’s last name."