Justin Timberlake usually spends most of his late-night talk show time on NBC, hanging out with his pal Jimmy Fallon.  But on Tuesday, September 24, he'll be appearing on ABC, taking over Jimmy Kimmel Live in a big way.

On Tuesday night, Justin will shut down a quarter mile of Hollywood Boulevard outside the show's studios to perform songs from his new album The 20/20 Experience -- 2 of 2, which is due out September 30.  He'll also discuss his new movie Runner Runner, which arrives in theaters October 4.  For free tickets to JT's performance, visit JKLTickets.com.

However, this event isn't as special as you might think.  On Monday night, the show will be doing the exact same thing for a performer who's more famous, more popular, much richer and arguably even more universally adored than Justin:  legendary former Beatle Paul McCartney.