Simplify the following text for a Grade 8 native English-speaking person.
Original: In fact , Li Bai was part of the group of Chinese scholars during his time in Chang ` an , called the `` Eight Immortals of the Wine Cup '' , as mentioned in a poem by fellow poet Du Fu ) .
Simplified: His fellow poet Du Fu counted him to the group of Chinese scholars that he called the `` Eight Immortals of the Wine Cup '' in a poem .