"The Mustangs: America's Wild Horses" takes audiences on an odyssey throughout America to places few people have seen or even know about. There are more than 80,000 wild horses on our federal lands and more than 50,000 in government corrals. Executive produced by Robert Redford, Patti Scialfa Springsteen and Jessica Springsteen. Featuring music by Bruce Springsteen, Emmylou Harris, Willie Nelson and an original song written by Diane Warren and performed by Blanco Brown.