Okay Scott, I agree you've listed some famous and hot(and notable) "Betty's" here, BUT when I clicked on your "Betty Hutton" link, I got a picture of this very cute young lady here...

And, while I admit this young lady is easy on the ol' eyes, she AIN'T no "Betty Hutton"...WHO, I might add, was one of the most talented singer/dancer/actress/comedians of the 1940s and 50s...plus, she wasn't all that hard on the ol' eyes, either!
Here! See for yourself....
http://www.youtube.com/watch?v=Pz7dZ9Q3K-E&feature=related