It's actually a popular song by the comedy duo " The Smothers Brothers".
This song is a humorous, folksy tune that talks about the aches and pains of getting older, often referencing "old bones".
While George Burns was known for his comedic timing and ability to entertain audiences with his unique style, he didn't perform "Old Bones." The song's popularity came from the Smothers Brothers, and it's considered a classic comedy song.