The Spotnicks are an instrumental rock group from Sweden. Formed in 1961, they were well-known for their “space suit” costumes and their Ventures-esque electric guitar sound. The Spotnicks have released 42 albums and sold over 18 million records. They still tour.

I guess if your gimmick works, then stick with it!

Below, The Spotnicks do their hit “Rocket Man,” based on a traditional Russian folk song, in 1962:
 

 
A killer romp through “Orange Blossom Special”:
 

 
“The Last Space Train”:
 

 
“The Spotnicks Theme”:
 

 
“Amapola”: