NBC has announced that the fourth season of America's Got Talent will premiere over the course of two nights on Tuesday, June 23 at 9PM ET/PT and Wednesday, June 24 at 9PM ET/PT.

Similar to last season, America's Got Talent will feature acts performing for home viewers' votes with the ultimate winner receiving a $1 million prize.

While David Hasselhoff, Sharon Osbourne and Piers Morgan will return to comprise the show's celebrity judge panel, actor and comedian Nick Cannon will replace Jerry Springer as the show's fourth-season host.

The 28-year-old Cannon began his career in 1998 at age 16 when he was featured on Nickelodeon's All That before starring in The Nick Cannon Show in 2002. In 2006, he premiered MTV's Nick Cannon Presents Wild'n Out, which became the network's highest rated comedy program for four consecutive seasons.

Springer had served as the host of America's Got Talent's last two seasons after replacing first-season host Regis Philbin. He announced in February that he was leaving the show because of commitments to The Jerry Springer Show as well as a stage production of Chicago in London.

NBC renewed America's Got Talent last August prior to Neal E. Boyd, a 32-year-old insurance-salesman-turned-opera-singer from Sikesron, MO, becoming America's Got Talent's third-season champion.

In addition to America's got Talent's fourth-season premiere, NBC also announced that it will premiere I'm a Celebrity...Get Me Out of Here!, a new revival of the celebrity U.K. reality series that previously aired on ABC in 2003, on June 1, and Great American Road Trip, a new reality competition that will feature seven families competing in challenges at American landmarks, on July 1.

America's Got Talent is produced by FremantleMedia North America and Simon Cowell's SYCO Television, with Cowell, Cecile Frot-Coutaz, Jason Raff, James Sunderland and Scott St. John serving as executive producers.