Which British singer leads "the Machine", the band behind the hit "Dog Days Are Over"?

Which rocker led the Blackhearts on the 1982 No. 1 hit "I Love Rock 'n' Roll"? Who led the Philadelphia soul group the Blue Notes, known for "If You Don't Know Me by Now"? Which singer, famous for his falsetto, fronted the Four Seasons on hits like "Sherry"? Before becoming an actor, which rapper led the Funky Bunch on the 1991 hit "Good Vibrations"? Which Genesis guitarist formed the side project the Mechanics, known for "The Living Years"? Which singer rose to fame fronting the Miami Sound Machine? Which Minneapolis superstar was backed by the New Power Generation in the 1990s? Which late-night TV host co-owned the racing team that won the 2004 Indianapolis 500?