You know, I really don't think Jarque is a troll... I think he does want to learn. That said, I'm prepared to be wrong. But Jarque, don't get scared away too quickly.
There have been productions of Cabaret with female Emcees.
There are male roles that are written for women to play, for example the title role in Peter Pan which is traditionally played by a female and was immortalized by Mary Martin. These are called breeches or trouser roles.
There are also female parts which are written for men to play like Edna in Hairspray, and most recently Miss Agatha Trunchbull in Matilda.
All That Jazz yes I know that but has there been a roll that was played by a men and now played by a women. I wonder if the Leading Player was changed because of the high notes?
Felix and Oscar/Florence and Olive Hamlet Fiona Shaw as Richard II Linda Hunt as Billy Kwan (film) Cate Blanchett as Bob Dylan (film) Who's LIfe Is It Anyway? (Mary Tyler Moore replacing Tom Conti as Ken/Claire; James Naughton succeeding Jane Asher and Jean Marsh as Dr. Scott)
One recent example: On A Clear Day You Can See Forever. The role Daisy Gamble originally played by Barbra Fabulous Streisand, turned into a gay guy David Gamble in the 2011 revival.
Lea DeLaria played Marryin' Sam in LIL ABNER and Eddie/Dr Scott in ROCKY HORROR, though she played them both as male.
"You travel alone because other people are only there to remind you how much that hook hurts that we all bit down on. Wait for that one day we can bite free and get back out there in space where we belong, sail back over water, over skies, into space, the hook finally out of our mouths and we wander back out there in space spawning to other planets never to return hurrah to earth and we'll look back and can't even see these lives here anymore. Only the taste of blood to remind us we ever existed. The earth is small. We're gone. We're dead. We're safe."
-John Guare, Landscape of the Body
In opera, there are a lot of 'trouser roles' mainly played by mezzo sopranos. Sesto in Handel's Giulio Cesare, another Sesto in "La Clemenza di Tito" and there is a role in "Figaro" which falls into this category. There is a version of "Romeo and Juliet" ("I Capuleti Y I Montecchi") where Romeo is played by a woman. One of the leads in "Der Rosenkavlier" is a pants role (Octavian is his name I believe).
It's interesting to note that it is not typically done for comic reasons (in theater it quite often-not always-is done to comic effect). The women in operatic trouser roles play the role as a man. (And I've seen it done to great effect.)
I think it's odd to claim that trouser roles in Opera are usually for comic effect, Dreaming. yeah, Cherubino wouldn't be as funny if he was written for a man, but 99% of trouser roles are written to be taken very seriously: Octavian, The Komponist, Romeo, All the Handel Roles, The hero in Semiramide...these are all serious romantic leads that are written for women.
The original Brazilian production of PIPPIN (in 1974) also featured a woman as the Leading Player. The role was played by Marília Pera, who is currently doing Hello, Dolly! (as Dolly)
Here's a Magazine cover with her as The Leading Player
Art washes away from the soul the dust of everyday life.