The day after Independence Day is when the fireworks will really be popping in Memphis, Tennessee.

As part of the city's festivities surrounding the 50th anniversary of the birth of rock and roll, Justin Timberlake, funk pioneer Isaac Hayes, Elvis guitarist Scotty Moore, actor/singer Billy Bob Thornton and others will gather at the legendary Sun Studios on July 5 -- 50 years to the day after Elvis Presley's "That's All Right" was recorded there in 1954. The bluesy, up-tempo song -- which featured Moore on guitar and Bill Black on bass -- is widely considered to have started the rock revolution.

Timberlake, who was born in Memphis, has often credited Elvis as one of his main influences. At noon on the 5th, he, Moore, Hayes and "Wooly Bully" author Sam the Sham will take part in the "Global Moment in Time," during which radio stations across the world have agreed to play "That's All Right." Organizers hope they will set a record for the most simultaneous airplay for a single song.

The Memphis Convention & Visitors Bureau will host a daylong event that will feature performances and speeches. "We are thrilled that Justin is coming home to join us as we celebrate this musical milestone," Bureau president Kevin Kane said. "He is already a world-renowned artist, and his work continues to extend Memphis' musical influence to the next generation."