BroadwayHD is now streaming the American Theatre Wing's Centennial Gala, which includes knockout performances from Laura Osnes, Taylor Trensch, Norm Lewis, Santino Fontana, Brian Stokes Mitchell, Rebecca Luker, Beth Malone, and Heather Headley. The star-studded lineup celebrated the composers whose work has influenced the American theatre over the last century and sang iconic numbers from West Side Story, Hair, Phantom, Show Boat, Company, South Pacific and more. The showstopper of showstoppers was Tony and Grammy Award winner Heather Headley bringing those powerhouse vocals and mesmerizing performance style to "What I Did For Love" from A Chorus Line. Get a glimpse of Heather's stunning rendition, and check out BroadwayHD for the full concert event.