James Corden recently had a legendary guest join him on **Carpool Karaoke**.
Paul McCartney appeared on the 23-minute segment this week.
He performed his hit song "Let it Be."
?I had a dream in the ?60s where my mum, who had died, came to me in the dream and was reassuring me, saying, ?It?s going to be OK, just let it be.? I felt so sort of great and like, ?It?s going to be great.? She gave me the positive word. So I woke up and was, ?What was that? She said, ?Let it be.? I?ve never heard that, that?s kind of good.? So I wrote the song ?Let It Be,? but it was her positivity.? Paul McCartney
The two sang the song together and Corden cried.