The rapper, singer, politician and record producer made the announcement on Twitter, posting a photo of what he called the hottest cast on television, The Hollywood Reporter reported Friday. The photo includes himself, co-stars Sam Palladio, Clare Bowen, Jonathan Jackson and Rya Kihlstedt.
Jean will appear in multiple episodes of the drama, which stars Connie Britton as an aging country music star who is teamed up with a younger musician, Hayden Panettiere, when her record fails to do well.
Jean has previously appeared in "Third Watch."
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Ray Liotta sues skin care company over use of likeness