Complex sentence: Up until Laws first retirement, on 25 June 2007, Williamson wrote and performed a series of jingles for Laws' morning show on 2UE, and his final jingle for Laws was "Hey good on ya Lawsie, you pulled the plug at last".
Split into simpler sentences: Up until Laws first retired on 25 June 2007, Williamson wrote and performed a series of jingles for Laws'radio morning show on 2UE. Williamson's last radio jingle for Laws was "Hey good on ya Lawsie, you pulled the plug at last".