Spencer Dryden of Jefferson Airplane was a nephew of Charlie Chaplin.:wave:

Only one I can think of right now is one that has been common knowledge for years.

Jerry Lee Lewis, Mickey Gilley and Jimmy Swaggart are all cousins

Ricky Nelson's parents were Ozzie [ Not Osborne ] and Harriet ( TV stars , and originally with a big band ) and the band "Nelson" was made up of Ricky's Sons

Rocky Burnette is the Son of rockabilly pioneer Johnny Burnette

Mike Nesmith( of the Monkees )'s Mom wasnt really famous but, she did invent "Liquid Paper" and got pretty rich

Susie Quatro's niece is actress Sherilynn Fenn

Roxie Roker who played Helen Willis in The Jeffersons is the Mother of Lenny Kravitz.

Gary Lewis is the son of Jerry Lewis.

Dez Fafara, vocalist formerly of Coal Chamber and currently of DevilDriver, is the son of Tiger Fafara, who played Wally's friend Tooey on "Leave It To Beaver", and was the nephew of the late Stanley Fafara, who played Beaver's friend Whitey on the show, and was a member of Sitcoms Online before he died in 2003.

The Everly Brothers and James Best are first cousins