I believe it was the '96 revival of ONCE UPON A MATTRESS, but I was 8 at the time so I don't remember 100% percent. I also saw ANNIE, TITANIC, STEEL PIER, and CANDIDE all around that same time.
Anything regarding shows stated by this account is an attempt to convey opinion and not fact.
My first day in New York ever I saw Mame at a matinee and Hello, Dolly that night. It took a week to wipe the smile off my face. That's a lot of "happy"! Oh, the next day I saw Ethel Merman in Annie Get Your Gun.
My biggest memory of 'how She was' is of her speaking with us in a private pre-arranged chat after the matinee. After the fireworks display we'd just witnessed, the suddenly tiny, unassuming young woman in glasses who graciously gave us a moment between shows rocked my young mind as to what performers do. In short — magic.