The 50th anniversary of Sports Illustrated's swimsuit franchise is celebrated in a special hosted by Heidi Klum. Appearing: Tyra Banks; Christie Brinkley; Kathy Ireland; Marisa Miller; and Kate Upton. Music guests include Enrique Iglesias; the Fray; Lady Antebellum; John Legend; and Tim McGraw.

NBC and Time Inc. present "Sports Illustrated Swimsuit: 50 Years of Beautiful," a two-hour TV special celebrating the 50th anniversary of Sports Illustrated's swimsuit franchise - one of the most hotly anticipated annual fixtures in American pop culture.

Former swimsuit cover model and "Project Runway" star Heidi Klum will host the special, which features appearances from fellow swimsuit icons Tyra Banks, Christie Brinkley, Kathy Ireland, Marisa Miller, Kate Upton and more of the most celebrated models in the franchise's history. Musical guests performing on the show include Grammy Award-winning, chart-topping artists Enrique Iglesias, Lady Antebellum, the Fray, John Legend and Tim McGraw.

The ...