Simplify the following text for a Grade 5 native English-speaking person.
Original: The song was also written by Selena 's brother , Abraham Quintanilla III and a former Selena y Los Dinos member , Pete Astudillo .
Simplified: Selena 's brother , A.B. Quintanilla III , had written the song with some help from Selena while touring for the Selena Live !