Within months, the Beatles were international stars. Epstein accompanied them to America, where he was besieged by merchandising offers, but had signed away 90 percent of the rights in advance. This is viewed as his one miscalculation. Some of Epstein's other young discoveries had also prospered under his management. They included Gerry and the Pacemakers, Billy J. Kramer and the Dakotas, Tommy Quickly, and Cilla Black. In 1967, he died of a drug overdose, ruled as accidental, at the age of 32.