Jessica Biel supports singer boyfriend

Justin Timberlake unveiled the debut collection for his clothing label William Rast on Monday.

The singer’s girlfriend Jessica Biel, 26, was on hand to see the launch at New York Fashion Week.

‘I want the whole line,’ she says. ‘I always wear the stuff and say, “This is tight here. Or this doesn’t work for me here.” I’m sort of a guinea pig, really.’

Justin, 28, who even took to the catwalk himself as a model, started the line with childhood friend Trace Ayala. Last year they recruited design team Marcella and Johan Lindeberg to help with the creative side and they have big plans.

‘This season, we’re inspired by Barack Obama,’ Justin tells People. ‘I am inspired [with] where we can go with the nation. That’s why we picked the theme of ‘New America’ for the show.’