Simplify the following text for a Grade 8 native English-speaking person.
Original: The song was also used as the theme music for The Cancer Council Australia 's `` Daffodil Day '' , in recognition of that organization 's official flower 's yellow hue .
Simplified: The song was also used as the theme music for The Cancer Council Australia 's `` Daffodil Day '' . This was in recognition of that organization 's official flower 's yellow hue .