Though 9 to 5: The Musical recently opened at the Ahmanson here in Los Angeles, the first public performance wasn't exactly glitch-free. At one point, two automated set pieces got stuck, prompting an impromptu curtain to come down for thirty minutes while technicians fixed the problem. Sound like a disaster? Not quite, since Dolly Parton herself leapt from her set to entertain the crowd, singing impromptu versions of "9 to 5" and "I Will Always Love You." Of the latter song, she cracked, "OK, so I don't sound as good as Whitney, but I make more money off that song than she does." Dolly, you'll make even more money off 9 to 5: The Musical if you can promise a shutdown like that every night. Clip above. [WoW Report]