Who are your three favorite female singers?

Just found Samantha Fish on Youtube great vocalist and blues guitarist. Great energy in her performances. If you like her try Anna Popov
Beth Hart after she hooked with Joe Bonamassa. The vibrato in her voice is amazing. 

Nancy WilsonCarly SimonClare Torry who sung The Great Gig in the Sky, from Dark Side of the Moon

@ sondeknz Julie London had a small voice and occasional pitch problems.  She still sounded very sexy.  

As to a female performance which always gives me goose bumps/makes me cry is Beverly Sills in The Ballad of Baby Doe.   There are five fabulous arias and then the one which ends the opera is phenomenal.   An American opera based on historical facts.  Tremendous feeling as well as superlative singing.

Linda Ronstadt
Jennifer Warnes
Christina Aguilera (not really for her music, but for her vocal skills)

Carmen McRae
Diana Kral
Billy Holiday