Team USA held their official launch party last night at the prestigious Royal College of Arts in London ahead of tonight's Opening ceremony for the London 2012 Olympic Games. We spoke to nine time gold medal hero Carl Lewis, Team USA flag bearer Mariel Zagunis and decorated gymnastic hero Shannon Miller. We also spoke to inspiring medal hopefuls from the USA Women's Basketball and Men's Volleyball teams and America's strongest woman Sarah Robles. Watch our exclusive interviews to hear just what the Olympics means to these incredible stars and their advice for the next generation of young athletes.