Simplify the following text for a Grade 6 native English-speaking person.
Original: Fanta is known for its upbeat advertising ; in the United States , it showcases The Fantanas , a casted group of young female models , each of whom promotes an individual Fanta flavor . For the re-introduction of Fanta in the United States , Coca-Cola worked with the ad agency Ogilvy ( NYC ) in 2002 .
Simplified: Fanta Orange is the most popular Fanta flavor .