Complex sentence: Ambrose Hsu sang the Lavender theme song "Hua Xing" and Xing Fu De Shun Jian in which he sang as a part of Lavender's last episode.
Split into simpler sentences: Ambrose Hsu sang the Lavender theme song "Hua Xing". He also sang "Xing Fu De Shun Jian" in Lavender's last episode.