The fans have spoken and they’ve told CMT who they think are the most influential women of the past 20 years!  CMT will air this all new special ’20 Greatest Women, 20 Years’ tomorrow night, May 6th at 10pm.  The two-hour fan-voted show features all-new exclusive interviews with the honored artists and videos of their biggest hits.  Reba, Martina McBride, Alison Krauss, and Shania Twain are some of the women featured.