Cook was the first African American radio disc jockey and television personality on the East Coast. Cook made a demo tape of Hamilton's singing and brought it to the attention of Columbia Records. Columbia was impressed enough to sign Hamilton to their rhythm and blues subsidiary, Okeh Records.
Cook was the first African American radio disc jockey and television personality on the East Coast. Cook created a demo tape of Hamilton's singing and presented it to Columbia Records. Columbia was sufficiently impressed to sign Hamilton to their rhythm and blues subsidiary, Okeh Records.