Oh, I was afraid you'd return the question! ;)
That's terribly hard for me to answer, because I just don't remember! Off hand, I'd have to say it was either Frank Sinatra or Cary Grant.

Wait- no- I remember now! It was HOWARD KEEL! Oh yes. (How could I forget?!) I grew up watching "Seven Brides for Seven Brothers" and "Calamity Jane" at my grandmother's house, and his voice just made me melt every time. Not to mention he was tall and gorgeous... :)

Never liked the moustache in 7B47B, though! haha