Simplify the following text for a Grade 7 native English-speaking person.
Original: South African Kaizer Chiefs fan Freddie `` Saddam '' Maake claimed the invention of the vuvuzela by fabricating an aluminium version in 1965 from a bicycle horn and has photographic evidence of himself holding the aluminium vuvuzela in the 1970s , 1980s and 1990s .
Simplified: A fan of the Kaizer Chiefs FC named Freddie `` Saddam '' Maake says that he invented the vuvuzela . He got the idea from the aluminium 1965 bicycle horn , and after taking off the black rubber , he blew it .