gather some of the best studio musicians in the country, and together they took that dusty old love song and made it sing ♪ you never seem to know they love you so ♪ >> reporter: mort's love song, originally intended for an audience of one, has now been played more than a million times on social media ♪ my love ♪ >> i was floored. >> right up and down the hall. it was unbelievable. >> reporter: and that is just the beginning. this fall, mort block, now 82, will grace the cover of an album featuring "my love" and other collaborations. perhaps a grammy next year, but for mort and susan, like couples everywhere... >> cheers. >> reporter: ...the song of the year will always be their song. ♪ through our joy and our tears "my love ♪ >> reporter: steve hartman "on the road" in kennett square,