Frankie Valli: Still Bringing In Crowds at 90 Frankie Valli, the iconic voice behind hits like "Can't Take My Eyes Off You," continues to tour at the remarkable age of 90. However, a growing number of fans and critics are questioning the authenticity of his live performances. Allegations of lip-syncing have been circulating for at least the past five years. While Valli's vocal prowess was undeniable in his prime, many believe that the demands of constant touring have taken a toll on his voice. A