Who Is Tiffany Alvord?

Singer-songwriter's gymnastics performance has over 200,000 YouTube views

Like the athletes in Rio, Tiffany Alvord dreamed as a girl of one day becoming an Olympian. In her case, it didn't happen. But she is part of NBC's massive marketing push to drive young viewers to tune in or stream the Olympics—what the network describes as its "most comprehensive social media plan ever."