Who performed Bruce Johnston "I Write the Songs" 📝🎚️🎛️🎙️best?

Frank Sinatra singing a variation of Bruce Johnston "I SING the Songs" 📝🎚️🎛️🎙️ on the Johnny Carson Show 1/2 https://t.co/eZR9r6Dq4Mhttps://t.co/wi6yRrYT7H pic.twitter.com/peBVlozcw8

— 🎼AdagioForStrings🎻 (@adagioforstring) July 17, 2019