The notable artists on your television screen this week include: Die Antwoord (Kimmel; 9/19), Usher (Kimmel; 9/20), Ariana Grande (Fallon; 9/19), Band of Horses (Fallon; 9/21), Wilco (Colbert; 9/21), Panic! at the Disco (Conan; 9/22), and X Ambassadors (Ellen; 9/22).