Simplify the following text for a Grade 10 native English-speaking person.
Original: Teddy Pendergrass ( real name : Theodore DeReese `` Teddy '' Pendergrass ) ( born March 26 , 1950 â `` died January 13 , 2010 ) was an American R&B and soul singer\/songwriter .
Simplified: Theodore DeReese `` Teddy '' Pendergrass ( March 26 , 1950 -- January 13 , 2010 ) was an American R&B \/ soul singer and songwriter .