In the video at the bottom, skip all the initial stuff which you may find to be a rant. He starts talking about Imagine at 37:30. He reads the existing verses, then makes up two of his own. Or, you can just read my transcription below.

“Imagine only good stuff happening

And really good stuff, too

No bad stuff, no sad stuff,

And no mad stuff too.

Imagine everyone’s happy

And they are being real nice

No one’s being super mean

And there are no fights.

“That’s just something from my heart. That’s where my heart is right now. You know, listening to this song, he covered a lot of stuff that we shouldn’t have like greed and hunger, but I’m thinkin’ … all the bad stuff. You know?”