Origin of band name showaddywaddy

Answer 1

in the song GONNA FIND MY ANGEL by the BOPPERS from SWEDEN

you can hear the background singers singing after the line:

GONNA FIND MY ANGEL (showaddywaddy)

This can't be true The Boppers'song is from 1991. Showaddywaddy was formed in 1973

Answer 2

Why are Showaddywaddy called Showaddywaddy?

In mid-1973 the two groups decided to join together permanently to form an eight-piece. They chose a name from the backing vocals of a song they had written called ‘Hey Rock ‘n’ Roll,’ and Showaddywaddy were born.