TV Line: Not to be outdone by a Super Bowl halftime show that will reportedly include Coldplay, Bruno Mars and Beyoncé, Stephen Colbert has announced a jam-packed lineup for his live post-game outing. Will Ferrell, Tina Fey, Margot Robbie, Keegan-Michael Key and Jordan Peele will all stop by “The Late Show” on Sunday, Feb. 7, Colbert announced in a series of tweets.