NBC celebrates the nation's 232nd birthday extravaganza with performances by Natasha Bedingfield, Kenny Chesney, Katharine McPhee, and Jordin Sparks on the live broadcast of the "Macy's 4th of July Fireworks Spectacular." Hosted by Natalie Morales, NBC's "Today" National Correspondent and Tiki Barber, "Today" Correspondent and "Football Night in America" Studio Analyst, the show will air in high definition on Friday, July 4th, 9-10 p.m. EST (all time zones).