Kara DioGuardi and Steven Tyler
Jason Merritt/Getty; Jen Lowery/Startraks
07/30/2010 at 01:00 AM EDT
And the American Idol
news just keeps coming!
After Ellen DeGeneres bowing out
and Jennifer Lopez stepping in
, there are reports that Kara DioGuardi
is off the show.
DioGuardi, who sat on the judges' panel for two seasons, has been fired, according to TMZ.com.
With DeGeneres and Simon Cowell gone
– and only J.Lo joining Randy Jackson
for season 10 – there could be two spots to fill. But according to the report, Idol
, which started out with three judges, will return to its original format and that final spot will be filled by Aerosmith
frontman Steven Tyler
A rep from FOX says only, "We are not commenting on any rumors or speculation." Calls to DioGuardi's rep and Tyler's rep have not been returned.