Complex sentence: Alan Ward, after his time with Elton Motello, continued his musical career through producing for other artists, including Plastic Bertrand, the musician behind Jet Boy, Jet Girl "'s sister song," Ça plane pour moi.
Split into simpler sentences: Alan Ward, after his time with Elton Motello, continued his musical career through producing music. He produced albums for various artists, including Plastic Bertrand, the musician behind Jet Boy, Jet Girl "'s sister song," Ça plane pour moi.