Dancing's Derek, Jerry O'Connell, Josh Groban to Guest-Host Live!

Jerry O'Connell and Josh Groban are returning to Live! With Kelly to guest-host opposite Kelly Ripa.

O'Connell is slated to appear on Friday, Nov. 25, while Groban will pop up for multiple days beginning Dec. 7. Additionally, Dancing with the Stars' Derek Hough and Jonah Hill will make their co-hosting debuts on Monday, Dec. 5 and Tuesday, Dec. 6, respectively. .

8 possible contenders to replace Regis Philbin on Live!

A permanent replacement for Regis Philbin has yet to be named, but Ryan Seacrest, Andy Cohen and Mark Consuelos —  Ripa's husband — are reportedly the top three candidates.

Regis Philbin announces final day on Live

Until then, Ripa will be joined by a slew of guest hosts, including Jerry Seinfeld, who was the first after Philbin left, How I Met Your Mother's Jason Segel and Neil Patrick Harris, Sex and the City's Kim Cattrall, comedian Howie Mandel, chef Jamie Oliver and Miss Piggy.

Who do you think should replace Philbin?