do you know Led Zeppelin?
Yes, I do know who he is. How could I not? His influence can be felt across music over the last 50 years.  
concerts in 1976 had the first lazor light shows. very simple bur great for the time
Oh yes! The 1970s were the beginning of the lazer light show boom. Way back before 1976 in 1971, they were having massive laser projections in concerts with the Los Angeles Philharmonic Orchestra. 
How cool! British rocker are the best!
Thanks the the British invasion in the mid 1960s. America has benefited from the musical genius of British rock music and we are still experiencing its benefits today. 
The Rolling Stones are old as dirt and still doing concerts.
You can tell that they love what they do, though. Keith Richards, in the Netflix documentary 'Under the Influence', talks more about others' music than his own, showing that he just loves music in general. It's an obsession for him. 
how many drug has he done! got to admire them all for hanging in there. They must really love it.
He has said before that he has done every drug, except today he only does coffee and cigarettes, mainly because drugs are not as good as they use to be, according to him.