What are masons and free-masons I heard J-Z and Beyonce are in this group along with others.?

I have been checkin out illuminate and freemasons who are suppose to be devil worshippers is this stuff true there is ton of info on u tube about the whole conspiracy startin back in biggie and 2-pacs days blood sacrifices and **** is this stuff true// Should I stop listening to their music is it worshipin the Devil. Check out illuminati on u tube and the Hip hop conspiracy