He was presumably warming up to play theSaturday Night Liveanniversary this weekend.

I cant believe were here doing this, he said with a grin.

Everybody in the room was having the night of our lives but nobody was having more fun than Paul.

Paul McCartney Played a Mind-Blowing Surprise Club Show in New York Last Night

MJ Kim/© MPL Communications Ltd.

Early on, when a fan yelled, Billy Shears!

Paul replied, Youare!

Sixty years later, Paul inspires that same kind of hysteria.

See how they run.

(He added to the surprise on Wednesday morning by announcing a second show at the same venue.)

OK, lets get this out of the way, he said at his psychedelic-painted piano.

Girls, give me a Beatles scream.

Paul laughed out loud when one fan called out for Flying to My Home.

Theres always old folks looking for deep cuts!

I made the driver turn it up, Paul marveled.

Its a 1993 outtake fromOff the Ground.

He said it was a B side to a CD single!

Do they evenhaveB sides, CD singles?

You mean besides Blackbird?

We were just kids, McCartney said.

Ive got grandchildren older than that now.

But there was an even huger emotional watershed in store.

John had so much love for New York City, he said.

We love you, John.

Lets hear it for John!

Playing in New York often seems to conjure up Lennons presence for him.

But there was something especially intimate about this Now and Then.

He spent years on a quest to bring his mates unfinished song to life.

He ended this show with the same words, and he made them sound like a statement of purpose.

Nows the time, now and then, now and forever.

VanderbiltBlackbirdCome on to MeJetOb-La-Di, Ob-La-DaGet BackNow and ThenLady MadonnaLet It BeHey Jude

ENCORE:Golden SlumbersCarry That WeightThe End