Complex sentence: Subsequently, Riley began recording and performing as a solo artist; his first album, "Brighthead", was recorded and released independently, produced with future Beyoncé and Run The Jewels collaborator Boots, who also joined Riley for a live performance.
Split into simpler sentences: Subsequently, Riley began recording and performing as a solo artist. His first album, "Brighthead", was recorded and released independently, produced with future Beyoncé and Run The Jewels collaborator Boots, who also joined Riley for a live performance.