who said if i knew i would live this long
Eubie Blake If I'd known I was going to live this long, I would have taken better care of myself.
If You Don't Know Me by Now "If You Don't Know Me by Now" is a song written by Kenny Gamble and Leon Huff, and recorded by the Philly soul musical group Harold Melvin & the Blue Notes. It became their first hit after being released as a single in 1972, topping the US R&B chart and peaking at number three on the US Pop chart.[1]