It'll take me a while to follow all the links you guys have suggested. Everyone I have checked has been fantastic. Thanks for sharing!! I've summed them up (taking only the first if more than one were posted
-- sorry, Dave, Lance, et. al. -- but I couldn't help but adding Emmy Lou)
To sum it up:
1) Peggy Lee
2) Julie London
3) Maria McKee
4) Aretha Franklin
5) Sarah Vaughan
6) Billie Holiday
7) Karen Carpenter
8) Diana Krall
9) Shirley Bassey
10) Ella Fitzgerald
11) Ann Wilson
12) Annie Lennox
13) Dinah Washington
14) Sinead O'Connor
15) Allison Krauss
16) Jane Monheit
17) Kim Nalley
18) Etta James
19) Celine Dion
20) Annie Haslam
21) Kelly Sweet
22) Simone Simmons
23) Pat Benetar
24) Stephanie Biddle
25) Susan Tedeschi
26) Lissie Rosemont
27) Christa Borden
28) Judy Tenuta
29) Chrissie Hynde
30) Bonnie Raitt
31) Nora Jones
32) Iris DeMent
33) Stevie Nicks
34) Jennifer Nettles
35) Patty Smyth
36) Regina Spektor
37) Deanna Johnston
38) Judy Garland
39) Rindy Ross
40) Roseanne Cash
41) Gigliola Cinquetti
42) Patsy Cline
43) EmmyLou Harris