Simplify the following text for a Grade 5 native English-speaking person.
Original: Williams 's son Hank Williams , Jr. , daughter Jett Williams , grandson Hank Williams III , and granddaughters Hilary Williams and Holly Williams are also country musicians .
Simplified: He left behind a wife and son , Hank Williams Jr. , who also grew up to become a country musician . Williams 's songs are still popular , and sung by many musicians .