According to some fans, Green changed the meaning of the song by switching out the line. The whole point of that lyric is that religion causes harm," tweeted someone with the handle @geekysteven. If 'all religion's true' it would be a pretty bleak place."
Green, who sang the song on NBC's New Year's Eve broadcast from Times Square, responded to criticism about the alteration by tweeting Yo I meant no disrespect by changing the lyric guys! I was trying to say a world were u could believe what u wanted that's all." He responded directly to other angry Lennon fans on Twitter, but has since deleted all of the tweets.