I showed the Beastie Boys to my grandmother last week, and she loved them.
I didn't really.
But I'm sure she would have loved them if I had.
All you need to make a beat is bang two sticks together. A child could do it (confidential to percussionists: we're not really serious. Please don't sue for libel). YouTube performers Wax and Herbal T took this idea to its logical conclusion and made a rap song using sounds from Herbal T's toddler son's playground session.