The Boston Pops performs at the Hatch Shell on the Esplanade in Boston Tuesday, July 3, 2007. The performance is a free dress rehearsal for the annual July Fourth celebration.
"Jack and Diane" singer John Mellencamp performs with the Boston Pops.
Members of the Blue Man Group perform at the dress rehearsal for the Boston Pops show.
Stacia Brackett of Taunton, Mass. smiles at friends as she awaits the dress rehearsal show in Boston on July 3, 2007.
The Boston Pops orchestra and conductor Keith Lockhart, center, do a performance with the Blue Man Group.
Maria Perry, of Kansas City, Mo., the Popsearch 2007 Grand Champion, performs with The Boston Pops and conductor Keith Lockhart, left, at the Hatch Shell.
Concert goers find a spot on the grass and prepare to enjoy the free dress rehearsal for the annual July Fourth celebration.
Actress and singer Hayden Panettiere sings the Star Spangled Banner at the dress rehearsal for the 27th Annual PBS "A Capitol Fourth" concert celebration on the lawn of the United States Capitol Building on July 3, 2007 in Washington, D.C. Other stars slated for this year's performance are Tony Danza, Little Richard, Dierks Bentley, Yolanda Adams, Elliott Yamin and Erich Kunzel leading the National Symphony Orchestra.
Actor and host of the evening Tony Danza performs at the dress rehearsal for "A Capitol Fourth."
Concert goers dance to the music of Little Richard on the lawn of the United States Capitol Building for the dress rehearsal of PBS's "A Capitol Fourth."
Gospel star Yolanda Adams performs at the dress rehearsal for the concert celebration in Washington, D.C.
Singer Clay Aiken of "American Idol" fame performs at Pizza Hut Park following a MLS soccer match where FC Dallas defeated Chivas USA, 2-0, in Frisco, Texas, Wednesday, July 4, 2007.
Nigerian singer Femi Kuti performs during the Comerica Cityfest at the New Center area Wednesday, July 4, 2007, in Detroit.
Singer Gloria Estefan performs the national anthem during a naturalization ceremony for more than 1,000 immigrants to become U.S. citizens, at Walt Disney World in Lake Buena Vista, Fla., Wednesday, July 4, 2007.
Singer Lee Greenwood performs the song "God Bless the USA", during a naturalization ceremony at Walt Disney World in Lake Buena Vista, Fla., Wednesday, July 4, 2007.
Daryl Hall, left, and John Oates perform on the steps of the Philadelphia Museum of Art during an Independence Day celebration in Philadelphia, Wednesday, July 4, 2007.
Bianca Ryan performs on the steps of the Philadelphia Museum of Art, during an Independence Day celebration in Philadelphia on Wednesday, July 4, 2007.
Patti LaBelle performs on the steps of the Philadelphia Museum of Art, during an Independence Day celebration in Philadelphia, on Wednesday, July 4, 2007.