Some great stuff here, grooving to Linda Ronstadt and Sophie Zelmani. Don't think I saw any mention of Joan Baez, great acoustic folk or with a band in the '70s. Also love Aimee Mann, such a great songwriter.
And in the guilty pleasures category, there's Barbra Streisand - Guilty, a vocal classic, great big belting. Just picked up The Story of My Life: Lea Salonga Live from Manila, her voice is just clear as a bell and so emotive. And was rocking out to Evita recently with Patti Lupone, powerful as well and such a great actor, a shining performance.