LOS ANGELES: Motown singing star Jimmy Ruffin , whose hits included ‘What Becomes of the Brokenhearted’ and ‘Hold on to My Love,’ has died aged 78, a Motown spokesman said. Ruffin died Monday in hospital in Las Vegas, according to media reports. The cause of death was not given.  ‘I can confirm the passing of Motown legend Jimmy Ruffin ,’ Allen Rawls, head of the Motown Museum in Detroit, told AFP.