In May it was announced that Mariah Carey and Tim McGraw were among the performers scheduled for the live broadcast of this year's "Macy's 4th of July Fireworks Spectacular" (NBC Thursday, July 4, from 8-10:00 p.m. ET).

Now with Taylor Swift added to the list, might there be a duet performance of "Highway Don't Care" during the celebration of our country's birthday?

If you miss the second-hour fireworks display over New York's Hudson river (with over 40,000 fireworks, it's the nation's largest), an encore follows immediately at 10:00 p.m.