"I'm not doing contemporary songs unless something comes along that really knocks my socks off"

This quote by Frankie Valli recommends that he is not interested in performing contemporary tunes unless he discovers one that he truly likes. He is indicating that he is not ready to choose just any modern tune, but rather he is searching for something that will truly impress him. This could be translated as an indication of his high standards and his dedication to just carrying out music that he genuinely thinks in. It might also be seen as a sign of his regard for the music he performs, as he is not ready to compromise on quality. This quote shows that Frankie Valli is an enthusiastic and devoted artist who is not ready to settle for anything less than the very best.