The ‘Good Day LA’ Style File checked out some of the hottest jeans for Spring from Justin Timberlake and Trace Ayala’s clothing line William Rast, talking with Justin’s best buddy about their apparel. “He’s involved all the time,” Ayala said of the former *NSYNC star. “Change this, change that… No, I’m just kidding. It’s great. Of course he gives a lot of input.” Watch the report below.