Guys, there is a method to wear women's clothes to men sim,I would like to create a visual kei singer.

Sorry for my english

You can with Nraas Master Controller! Switch the NRaas.MasterContoller.UniGenderAdultSetting:MenuName on true, to enable clothing for all genders.

Cupcakes Taste Like Violence has some conversions for female to male clothing.

I installed it but when I start the game crashes

There aren't many circumstances that would cause MasterController to crash the game on startup. Here's the list:

-- You selected the wrong version for your game's patch level.
-- You selected the right version, but your game was never completely patched and you never knew it until now.
http://help.ea.com/en/article/the-sims-3-super-patcher (if the SuperPatcher says you are already up to date, make it run anyway)
-- You tried to install an add-on module without the MC base mod, or you tried to include the MC Progression add-on module but you do not have the StoryProgression base mod.
-- Your game was not obtained from a legitimate source.

now it works but I do not understand where to click in the menu

On City Hall or an in-game computer,
NRaas > MC > Settings > CAS > Category Changes

Note that this will only have an effect if you use a MC command to enter CAS. To get the MC version of CAS throughout your game, you would need the MC Integration module in addition to the base mod.