Lily Allen and Alfie Allen

Alfie Allen shot to fame playing Theon Greyjoy in ‘Game of Thrones’, but few people realized that he was the brother of pop star Lily Allen.

Lily even recorded a song in tribute to her younger sibling, 2007's 'Alfie'.

The ‘LDN’ singer told Marie Claire that the song "has been the subject of many family arguments".