John Fair "Jocko" Marcellino (born May 12, 1950) is an American singer, musician, songwriter, producer and actor best known as one of the founders of the American rock and roll group Sha Na Na. He performed with Sha Na Na at the original Woodstock Festival, in the movie "Grease" and in The Sha Na Na Show, their worldwide syndicated TV show.

Can we draw the following conclusion?
John Fair was born a singer in 1950

Select from:
(I). Yes.
(II). It's impossible to say.
(III). No.
(I).