There are many more than the clash. Some artists/bands are useful idiots being controlled and others are full on knowing agents providing a service to the intelligence of the elite in the form of psyop work.
Mr. Bono is one of the "knowing" ones.
The Beatles were useful idiots. When John figured out their role and began talking openly about it, he was taken out.
There is a reason some of these "agents" are getting knighted by the "innocent" queen. ;-)