Complex sentence: Broussard was signed for a time to Jermaine Dupri's So So Def Label, writing for and working with such artists as Aretha Franklin, but her own project was stalled, and Trina then moved to Motown/Universal.
Split into simpler sentences: Broussard was signed for a time to Jermaine Dupri's So So Def Label, writing for and working with such artists as Aretha Franklin. Her own project was stalled, and Trina then moved to Motown/Universal.