Splish Splash I was taking a bath...

Splish splash, I was taking a bath
Long about a Saturday night
A rub dub, just relaxing in the tub
Thinking everything was alright

Well, I stepped out the tub, put my feet on the floor
I wrapped the towel around me 
And I opened the door, and then
Splish, splash! I jumped back in the bath
Well how was I to know there was a party going on

They was a-splishing and a-splashing, reelin' with the feelin'
Moving and a-grooving, rocking and a-rolling, yeah

I sing this song when I give Juliet her baths.  It's an oldie but I know it because

my dad use to sing it to me.  Juliet usually cries the first 10 seconds of her bath

but then settles down and smiles for the rest.