Beatles and Rolf Harris singing Tie me Kangaroo Down with quite a few mistakes, which make this recording so appealing here ya go with the lyrics

Lyrics
 Rolf: Fellas you feel like singing a [bad word] with me?
Beatles: yeah mmm okay yup etc etc
Rolf: There's enthusiasm for you I'll give you a rough idea how it goes, it starts off with me going like this a one, two, a one two three four
 Wobble board starts up
 Rolf: And [bad word] in with me Paul/STRIKE
And [bad word] in in E, Paul
All together that's nice ha ha

There's an old Australian stockman, lying, dying. ahh..and he gets himself up onto one elbow and he turns to his four mates who are gathered around and he says.....

Cut your hair once a year boys,
Cut your hair once a year
If it covers your ears you can't hear boys
So cut your hair once a year

All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo
Tie me kangaroo *Rolf do you have to do that* down sport
Tie me kangaroo down Wooooooooooo

Rolf: ha ha, dear oh dear I forget the words now...take care of me, make sure, look out after me...keep goin'....
Beatles: haha, woooooooo *Paul take care look after me,cant hear the rest*
Don't ill treat me pet dingo Ringo
Don't ill treat me pet dingo!
They cant understand your lingo, Ringo
So don't ill treat me pet dingo

All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo
Tie me kangaroo down sport
Tie me kangaroo down

I think George's guitar is on the blink I think
George's guitar is on the blink
It shouldn't go mmmngaaa, mmmngaaa, mmmngaaa Plink
Okay now that's really on the blink
All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo
Tie me kangaroo down sport
Tie me kangaroo down

Prop me up by the wall, Paul
Prop me up by the wall,
I'll scream and cheer till I fall Paul
If you'll prop me up by the wall

All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo *Rolf: that's where it should be, there woooooo
Tie me kangaroo down sport
Tie me kangaroo down Wooooooooooo

Keep the [bad word] on, John
Keep the [bad word] on
At least until after I'm gone, John
Keep the [bad word] on

All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo
Tie me kangaroo *Rolf I got it* down sport
Tie me kangaroo down

Rolf: give us a bit of diddiddydid that's it
And with his very last gasp, he says...
Tan me hide when [bad word] chums
*Rolf coughs a bit and says oh dear*
Tan me hide when [bad word] So we tanned his hide when he died, Clyde,
And Ringo's got it on his [bad word] 

All together now
Tie me kangaroo down, sport
Tie me kangaroo down Wooooooooo
Tie me kangaroo down sport
Tie me kangaroo down

Ha ha ha what a phony bunch of laughter that was what about messing up that ending after all the rehearsal we did at least once?
John: you forgot the words didn't ya Rolf?