A thread of Famous Celebs you may not have known are related:
Christian Bale and Gareth Bale (Twins)

Sam Smith and Graeme Smith (Brothers)

A. J Styles and Harry Styles (Father and Son)

Amber Rose and Danny Rose (Siblings)

Stoogie T and Booker T (Uncle)

Connie Ferguson and Alex Ferguson (Grandfather)

Khuli Chana and Blacc Chyna (Cousins)
J. Cole, Joe Cole and Ashley Cole (Triplets)

R Kelly and Kelly Kelly (Cousins)

Wiz Khalifa and Mia Khalifa (Siblings)

Biggie Smalls and Kabza De Small (Uncle)