Notable clients included Bruce Springsteen and members of his band such as Nils Lofgren and Garry Tallent, Tom Petty, Keith Richards, Steve Miller, Jim Croce, Johnny Cash, James Taylor, Loverboy, former Elvis Presley band members, Paul McCartney and Tal Farlow and Paul Stanley of Kiss, a one off White "Flying V" with a bolt on neck and rewired Guild pickups. Petillo and Springsteen were friends and actually from the same neighborhood when Petillo sold him a Fender Esquire which Springsteen continues to use. In 1985, Springsteen once waited six hours in Petillo's basement for him to finish furnishing his guitar for a concert. A guitar made by Petillo was featured on Springsteen's album "Born to Run". Petillo was also friends with Croce and once repaired his Martin D-35. He also invented and promoted a line of strings for Tommy DeVito and The Four Seasons.