Terry Gross, host of NPR's "Fresh Air," will go toe-to-toe with recent candidate for President of South Carolina, Stephen Colbert, tonight on "The Colbert Report" at 11:30 p.m. EST. Terry will be the featured guest, appearing in the second half of the show.

Stephen recently sang Sondheim on "Fresh Air." Now, the tables will be turned, and Terry will be facing the questions. The two will look back at some of Terry's most memorable interviews — good and bad. Perhaps they'll even swap some tricks of the trade.

Both @npr and @nprfreshair will Tweet live from behind the scenes. Follow the conversation on Twitter at #freshaironcolbert.

If you catch the show, share your reaction in the comments below!