Simplify the following text for a Grade 8 native English-speaking person.
Original: Kofi Sarkodie-Mensah ( born August 12 , 1981 ) , is a Ghanaian born-American professional wrestler , better known by his ring name , Kofi Kingston , currently signed to World Wrestling Entertainment ( WWE ) , working on the SmackDown brand .
Simplified: Kofi Sarkodie-Mensah , also known by his ring name , Kofi Kingston , is a Ghanaian professional wrestler . He is currently signed to World Wrestling Entertainment working on the Raw brand , where he is the current WWE United States Champion . .