"I hope you all had a great weekend. I certainly did," Colbert said.
"I certainly hope that my star power can bump this hearing all the way up to C-SPAN 1," Colbert joked during his testimony.
The suits in Washington D.C. are still reeling over Colbert's joke-filled testimony last Friday regarding a serious issue, illegal farm workers.
And on his return to Comedy Central's The Colbert Report Monday night, Colbert was his usual tongue-in-cheek self.
"On Friday, I took a little road trip to DC. Made a lot of friends," Colbert said.
Actually, he didn't. Many are still appalled by Colbert's testimony. But not his Comedy Central colleague Jon Stewart.
"You can't embarrass Congress! How could you?" asked Stewart.
Celebrities have always used their star power to draw attention to serious causes before Congress, even Elmo from Sesame Street.
"Please, please, please, oh please give the kids the gift of music, please," exclaimed Elmo when he testified before Congress.
"One of the things that I think differentiates Colbert's testimony was that he was in character. It hasn't been since Elmo's ground breaking testimony that we've seen an actor in character. I don't think we'll see another celebrity in character for a very long time," said Christina Wilkie, a colomist for The Hill.