STAGE TUBE: Behind the Scenes - IF/THEN's LaChanze Sings National Anthem at Broncos Home Opener

Just before IF/THEN launches its National Tour, one the hit musical's stars, LaChanze, sang the National Anthem at the Denver Broncos home opener against the Baltimore Ravens. Click below to go behind the scenes with LaChanze in rehearsals and watch her full performance!

The IF/THEN National Tour premieres in Denver on October 13 and runs through the 25th before heading out across the U.S. Tony Award-winner and Broadway superstar Idina Menzel (Wicked, Rent, Frozen, "Glee") will reprise her critically-acclaimed performance as Elizabeth in IF/THEN, the Broadway musical written specifically for her.

This musical, with unforgettable songs and a deeply moving story by the Pulitzer Prize and Tony Award-winning creators of NEXT TO NORMAL, follows two distinct storylines in the life of Elizabeth, a city planner who moves back to New York to restart her life in that city of infinite possibilities. When her carefully designed plans collide with the whims of fate, Elizabeth's life splits into two parallel paths. IF/THEN follows both stories simultaneously, as this modern woman faces the intersection of choice and chance.

The video was shot and edited by Dave Lenk, with interviews by John Moore.