Els artistes pop Peter Blake i Jann Haworth van dissenyar la portada de Sgt. Pepper, guanyadora d'un premi Grammy a Millor Portada, a partir d'un esborrany de tinta fet per McCartney. La portada de l'àlbum consistia en un collage colorit protagonitzat pels Beatles vestits com a membres de la banda de Sgt. Pepper, acompanyats per un seguit de persones famoses.
El collage inclou 57 fotografies i 9 estàtues de cera que representen diverses personalitats, entre les quals actors, esportistes, científics. La imatge definitiva incloïa cantants com Bob Dylan i Bobby Breen; les estrelles de cinema Marlon Brando, Tony Curtis, Marlene Dietrich i Marilyn Monroe; l'artista Aubrey Beardsley; el boxador Sonny Liston i el futbolista Albert Stubbins. També hi figuraven els comediants Stan Laurel i Oliver Hardy i els escriptors H. G. Wells, Oscar Wilde, Lewis Carroll i Dylan Thomas.
Per descobrir tots els personatges que hi apareixen, pots anar al següent enllaç.
It was twenty years ago today
Sgt. Pepper taught the band to play
They've been going in and out of style
But they're guaranteed to raise a smile
So may I introduce to you
The act you've known for all these years
Sgt. Pepper's Lonely Hearts Club Band
We're Sgt. Pepper's Lonely Hearts Club Band
We hope you will enjoy the show
We're Sgt. Pepper's Lonely Hearts Club Band
Sit back and let the evening go
Sgt. Pepper's lonely, Sgt. Pepper's lonely
Sgt. 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 that 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 Sgt. Pepper's Lonely Hearts Club Band