Weekend trip to Rome 14 - 18.5.

Hello ,
I'm coming to Rome for longer weekend break with two my best friends. The girl's escape ;-)
Is there any 'special' event during these days which you would recommend ?
Something we should not really miss during this trip to Italy ? :-)
I'm after anything cultural - an exhibition / show , music/ dancing related, fine dining, partying etc ; Protected content all visited Rome before , so already done the usual sightseeing stuff )

Or any idea which you would recommend 'as local scout' will be appreciated ;-)

Thanks in advance for the tips !

M.