The first Beatles song that i seem to remember hearing was Yellow Submarine. Correct me if i'm wrong but i take it it is John doing the posh voice in this song?
Produced by George Martin and engineered by Geoff Emerick, "Yellow Submarine" was finished after five takes on 26 May 1966, in Studio Two at Abbey Road Studios, with special effects being added on 1 June 1966. On the second session the studio store cupboard was ransacked for special effects, which included chains, a ship's bell, tap dancing mats, whistles, hooters, waves, a tin bath filled with water, wind and thunderstorm machines, as well as a cash register, which was later used on Pink Floyd's song "Money".
Lennon blew through a straw into a pan of water to create a bubbling effect, McCartney and Lennon talked through tin cans to create the sound of the captain's orders, at 1:38-40 in the song, Ringo stepped outside the doors of the recording room and yelled like a sailor acknowledging "Cut the cable! Drop the cable!", which was looped into the song afterwards, and Abbey Road employees John Skinner and Terry Condon twirled chains in a tin bath to create water sounds. After the line, "and the band begins to play", Emerick found a recording of a brass band and changed it slightly so it could not be identified, although it is thought to be a recording of Georges Krier and Charles Helmer's 1906 composition, "Le Rêve Passe". The original recording had a spoken intro by Starr, but the idea was abandoned on 3 June 1966.
When the overdubs were finished, Evans strapped on a marching bass drum and led everybody in a line around the studio doing the conga dance whilst banging on the drum.
"Yellow Submarine" was mixed on 2 and 3 June, and finished on 22 June 1966.
Ringo Starr – vocal, drums
Paul McCartney – backing vocal, shouting, bass guitar
John Lennon – backing vocal, shouting, acoustic guitar
George Harrison – backing vocal, tambourine, acoustic guitar
Mal Evans – backing vocal, bass drum
George Martin – backing vocal, producer
Geoff Emerick – backing vocal, engineer
Neil Aspinall – backing vocal
Alf Bicknell – sound effects (rattling chains)
Pattie Harrison – backing vocal
Marianne Faithfull – backing vocal
Brian Jones – backing vocal, sound effects (clinking glasses)