Beyond Bieber: 'The Voice' Season Finale Guest List Grows

The Voice Judges NBC's "The Voice" season finale looks to be on a roll that just won't stop.

Someone apparently decided Justin Bieber just wasn't high-caliber enough star power for the May 8, two-hour finale to the second round of dueling prime time talents. Bieber, who has a forthcoming new album called Believe that needs stumping for, will be joined by quite the supporting cast.

On top of this season's winner, the finale will also boast ringtone rapper Flo Rida performing his latest single, "Wild Ones". Flo is coming fresh off performing "Good Feeling" live April 1 at Wrestlemania XXVIII in his Miami backyard, heralding the return of no less than The Rock to a WWE ring. Hall & Oates will stop by to perform "Rich Girl", the 1977 single that began their career set of six Billboard Hot 100 #1 hits. Lady Antebellum - fresh off winning Top Vocal Group on April 1 at the 2012 ACM Awards - will be trotting out their own recent single, "Wanted You More". And of course, Bieber himself revealed earlier this season on "The Voice" that he'll be singing Believe's first single, "Boyfriend".

With whom will Flo, Lady Antebellum, Hall & Oates and Bieber be sharing the stage? Well, that's still anybody's game.

With the semifinals kicking off April 30, the four teams led respectively by Adam Levine, Cee Lo Green, Christina Aguilera and Blake Shelton each have two hopefuls left contending for the second-season crown. Katrina Parker and Tony Lucca remain from Team Adam; from Team Blake, Erin Willett and Jermaine Paul; from Team Cee Lo, Juliet Simms and Jamal Rogers; and finally, Team Christina's Chris Mann and Lindsey Pavao round out  the field.