Unruly crowds are also called mobs.
According to creater Graham Linham it's whatever you prefer. I like to think of it as the IT (as in computers) crowd
Crowd pleaser, although the hyphenated alternative is not a serious error. Americans tend to want to drop hyphens as much as possible. For example, Canadians write " co-operation " because "...
they normally say how yummy bananas are.☺
The Crowd Limited is the business based in Road, New Malden