Short people got no reason, but they still like Gary Numan, as do i.
Who is Gary Numan? I have no idea.
He is a musician and songwriter from Hammersmith, West London.  He used to be the lead singer of the new wave band "Tubeway Army' before going out on his own.
I see, what are some popular songs of his?
His most famous song in the 1970's and 1980's was called "Cars". Since then, he has a cult following.
Has he been involved in any controversy?
No, no controversy.  his music was composed mainly of heavy synthesized hooks fed to his electric guitar effects pedals; He was a pioneer of electronic music.  What they would almost call Techno today. 
How did he get involved in singing and songwriting?