Lucy & Carly had a Billboard Hot 100 hit as The Simon Sisters with “Winkin’, Blinkin’ and Nod” in 1964.
"One of the most versatile, talented, graceful, kind, witty, wise, classy ladies I’ve ever met has left us," Alexander tweeted.
"The amount of times this guy has heard me sing Don’t Rain On My Parade," the actress joked about her former Glee costar.
'I’ve been wanting to come back to Broadway for so many years,' the 'Glee' alum said.