ANSWER
Vicki Lawrence.
Yes, the same Vicki Lawrence from TV's "The Carol Burnett Show" and "Mama's Family". The 1973 hit, written by her husband at the time Bobby Russell, was #1 for two weeks.
WHO GOT IT RIGHT: Cindi Lou, George Waller, Andie J, Marika Thiessen, Wade Williams, John Trotter, William Anderson, Jason Mendenhall, Robin Campbell, Steve Shuba, Richard Garcia, Stephanie Poarch, Marc Quinlivan, Sam Krupsky, Michael Nichols, kbrohl, Joe Tufano, and Bob Milligan.
