 Securing a gig at the Onyx Club on 52nd Street in 1937 confirmed Kirby's status as a bandleader, although in the first Onyx Club lineup, it was singer-drummer Leo Watson who got featured billing.Kirby's sextet was soon known as the Onyx Club Boys, and took the shape it would basically hold until World War II, usually with Charlie Shavers (trumpet), Buster Bailey (clarinet), Russell Procope (alto saxophone), Billy Kyle (piano), O'Neill Spencer (drums).