90-year-old Clive Davis on signing some of the biggest names in the music business: "I do know when I hear a hit song"

In his early years, Clive Davis was never drawn to music. He began his career as a lawyer.  

"I was plucked out of a law firm to become chief lawyer for Columbia Records three years out of law school. I did that for five years," Davis told "CBS Mornings" co-host Gayle King. 

He was shortly made to be head of Columbia Records with no training in music. Davis said he never thought he would have a "musical ear" but he is credited to be one of the greatest hit-makers—signing some of the biggest names in the business, including Barry Manilow, Patti Smith, Billy Joel, and Earth Wind and Fire.