that the singer's going to sing a song是什么歌

It was twenty years ago today,
Sergeant Pepper taught the band to play,
they've been going in and out of style,
but they're guaranteed to raise the smile.
So may I introduce to you,
the act you've known for all these years,
Sergeant Pepper's Lonely Hearts Club Band.
We're Sergeant Pepper's Lonely Hearts Club Band,
we hope you will enjoy the show,
Sergeant Pepper's Lonely Hearts Club Band,
sit back and let the evening go,
Sergeant Pepper's Lonely,
Sergeant Pepper's Lonely,
Sergeant Pepper's Lonely Hearts Club Band.
It's wonderful to be here,
it's certainly a thrill,
you're such a lovely audience,
we'd like to take you home with us, we'd love to take you home.
I don't really want to stop the show,
but I thought you might like to know,
that the singer's going to sing a song
and he wants you all to sing along.
So let me introduce to you,
the one and only Billy Shears,
and Sergeant Pepper's Lonely Hearts Club Band.