Complex sentence: In 2015, Mos Def featured on A $AP Rocky's second studio album At Long Last A $AP on the track "Back Home" alongside Acyde & the deceased A $AP Yams.
Split into simpler sentences: In 2015, Mos Def featured on A $AP Rocky's second studio album At. ASAP on the track "Back Home" alongside Acyde & the deceased A $AP Yams.