Sinatra is among the world's best-selling music artists with an estimated 150 million record sales. Nicknamed the ' Chairman of the Board' and later called 'Ol' Blue Eyes', he is regarded as one of the most popular entertainers of the mid-20th century. Francis Albert Sinatra ( / s ɪ ˈ n ɑː t r ə/ Decem– May 14, 1998) was an American singer and actor.