If you’ve yet to experience the magic that is Broadway’s revival of The Color Purple, Stephen Colbert has a real treat for you. He invited the show’s breakout star and now Tony nominee, Cynthia Erivo, to perform her standout solo number, “I’m Here,†on Monday’s Late Show. Erivo’s turn as Celie has been one of the most-talked-about performances of the season, and if it wasn’t yet clear why, allow her to blow you away.