Do you mean Iko Iko?
The Dixie Cups did it in the 60s and the Belle Stars covered it in the UK (1982). It's on the soundtrack to Rainman too.
Not sure if the lyrics work with a detergent ad!
My grandma and your grandma
Were sittin' by the fire.
My grandma told your grandma:
"I'm gonna set your flag on fire."
Chorus:
Talkin' 'bout: Hey now! Hey now!
Iko, Iko, unday
Jockamo feeno ai nan�.
Jockamo fee nan�.
Look at my king all dressed in red.
Iko, Iko, unday.
I betcha five dollars he'll kill you dead.
Jockamo fee nan�
Chorus:
My flag boy and your flag boy
Were sittin' by the fire.
My flag boy told your flag boy:
"I'm gonna set your flag on fire."
Chorus:
See that guy all dressed in green ?
Iko, Iko, unday. He's not a man;
He's a lovin' machine.
Jockamo fee nan�.
Chorus: