I am a big Beatles fan. And, you know, unbeknownst to anyone, I used to be one. But I have no problems of putting titles and lines from other songs in my songs, because they're great lines and great titles. ↗
I would sell 2 million records, a million went to teenagers and a million went to the adults. So, when The Beatles became so popular, I lost a million to the teenagers, but I was still selling a million to the adults. ↗