Rascal Flatts announced today on their website that teen pop sensation Justin Bieber will join them onstage for their upcoming concert special, “Rascal Flatts: Nothing Like This Presented by JCPenney” on ABC (WDIO 10/13). Bieber isn't the only special guest making an appearance, see who else after the break.

Also joining Rascal Flatts on stage for the concert special, which airs on Saturday March 12th, pop singer Natasha Bedingfield.  She joined the band on stage when they filmed the special in St. Paul at the Xcel Center.