Buddy Covelle appears to be a studio name created by Coral. American rock'n'roll singer, originally from Shreveport (Louisiana) is also considered by some to be the same person as Veline Hackert https://www.discogs.com/artist/3041033-Veline-Hackert

Info sourced via Buckeyebeat: Our best guess us that Buddy was a recording pseudonym for one of the Hacker brothers, or one of the two Parrish brothers.