Dr. Dre, Lady Gaga and others have also used their music careers as launch pads to much more. By Fallon Prinzivalli Justin Timberlake Photo: Elle Decor Can we still call Justin Timberlake a triple threat? We’re not questioning the fact that he can sing, dance and act — although, he hasn’t done the first two in quite some time, so he may need to remind us — as much as we’re thinking that “triple” doesn’t begin to describe his threat. Aside from the incredible success ‘NSYNC and his solo career brought him, Timberlake launched a clothing line (William Rast), has his own brand of tequila (901), has co-owned or endorsed multiple restaurants including Chi, Destino and Southern Hospitality, and we hear he’s a great golfer. Now, the news came Monday (April 16) via Elle D