The National Music Publishers Association has confirmed Yoko Ono will share credit for the late John Lennon's 1971 peace anthem Imagine.

"Proudest day of my life: The National Music Publishers Association just gave the centennial (song of the century) award to Imagine, but WAIT! Surprise! They played an audio interview of my father saying (approximately) 'Imagine should've been credited as a Lennon/Ono song, if it had been anyone other than my wife I would've given them credit.' Cut to: my mother welling up in tears, and then Patti and Jesse Smith @michiganmanhattan Imagine! Patience is a virtue! (PS they officially declared Imagine to be a Lennon/Ono song and gave my mother a second award!)" Sean Ono Lennon, the couple's son said in an Instagram post Wednesday.

The message accompanied a photo of himself with Ono, rocker Patti Smith and Smith's daughter Jesse.

John Lennon, a former member of the iconic band the Beatles, was fatally shot by a deranged fan when he was 40.