Tuesday night’s theme was disco. I have to admit it was entertaining to see performers whose parents were probably still in their teens during the movement’s heyday and who are undoubtedly more familiar with Panic at the Disco than Studio 54 take a stab at interpreting classics by Yvonne Elliman; Earth, Wind & Fire, Donna Summer and others.

As expected, the contestant who fared the best was viewer favorite Adam Lambert with his slowed down version of Elliman’s “If I Can’t Have You.”

Tonight however, two finalists will be shown the door with no hope of coming back. The judges used their one shot at overruling the popular vote last week.

And if you’re of a certain age, it’s worth tuning in tonight even if you aren’t a fan of “Idol.” The evening’s guest performers are disco divas Thelma Houston (“Don’t Leave Me This Way”) and Freda Payne (“Band of Gold”).

Wednesday, April 22
Chicago – “The Ellen DeGeneres Show”
Jo Koy, Jen Kirkman – “Chelsea Lately”
Nickelback – “The Hour with George Stroumboulopoulos” – rerun
Beyoncé – “Late Show with David Letterman”
George Wallace – “The Tonight Show with David Letterman”
Janeane Garofalo – “Late Night with Jimmy Fallon”
Justin Timberlake, The Whip – “Jimmy Kimmel Live!”
Kristin Chenoweth – “Late Late Show with Craig Ferguson”

Thursday, April 23
Beyoncé – “The View”
Lindsay Lohan, Prince – “The Ellen DeGeneres Show”
George Wallace, Loni Love, Brad Wollack – “Chelsea Lately”
Howie Mandel, Rush – “The Hour with George Stroumboulopoulos” – rerun
Jamie Foxx, Paula Abdul, The Dead – “Late Show with David Letterman”
Big Bad Voodoo Daddy – “The Tonight Show with Jay Leno”
Tinted Windows – “Late Night with Jimmy Kimmel”
Depeche Mode – “Jimmy Kimmel Live!”
Martina McBride – “Late Late Show with Craig Ferguson”
Brett Dennen – “Last Call with Carson Daly”

Friday, April 24
Lil’ Wayne – “The View”
Jamie Foxx – “Live with Regis and Kelly”
Tracey Ullman – “The Tavis Smiley Show”
Natasha Leggero, Rodney Perry – “Chelsea Lately” – rerun
Lily Allen – “The Hour with George Stroumboulopoulos” – rerun
Billy Bob Thornton and The Boxmasters – “The Bonnie Hunt Show”
Lily Allen – “Late Show with David Letterman”
Brad Paisley – “The Tonight Show with Jay Leno”
Jamie Foxx – “Jimmy Kimmel Live!”

Saturday, April 25
The Raconteurs, Cat Power – “Austin City Limits” – rerun
Ray LaMontagne – “Saturday Night Live” – rerun