What can I do to teach the ppl upstairs a lesson next time they wake me up at 5am by being noisy?

Heya, last night at 5am suddenly loads of noise started upstairs, they randomly put on 1 song really loudly, then after that I heard someone, who must be the size of an elephant, jumping up and down and walking around thudding their feet, it was so loud my ceiling was creaking. Then they started playing guitar and wailing along to it, after about half an hr a taxi pulled up, someone yelled like a caveman out of the window at him, then I heard the fat guy fall down, get up and run down the stairs and get into it. I've never heard footsteps from upstairs before so this friend of theirs must have been huge cos it was soooo loud. When I got up this morning I noticed he'd left the front door to the building wide open! After that there was no noise but by this time I was wide awake. They did this the night before but last night was worse. I was just about to put on some loud music so they got the hint, but luckily then that fat guy went home. Any suggestions for if it happens again?