Bette Midler "The Showgirl Must Go On" Celebrates 100th Show at The Colosseum at Caesars Palace, June 7 LAS VEGAS, NV--(Marketwire - June 1, 2009) - Bette Midler has entertained Sin City with her brash humor, leggy Caesar Salad girls and bawdy gags since Feb. 2008 in "The Showgirl Must Go On," and...