Complex sentence: William John Paul "Liam" Gallagher (born 21 September 1972) is an English musician, singer, and songwriter, best known as the frontman of the rock band Oasis.
Split into simpler sentences: William John Paul "Liam" Gallagher (born 21 September 1972) is an English musician, singer, and songwriter. He is best known as the frontman of the rock band Oasis.