Sam Smith is Lily Allens cousin! Wed-23-Jul-14 08:13 Share this By Jay-Jay FeeneyLILY ALLEN and British singer SAM SMITH are cousins!Sam says, "She's my cousin but I've only met her once in my entire life. My family told me for years that she's my cousin... I never believed them so I tweeted her and she tweeted me back saying that we are cousins." You May Also Like Sam Smith takes to Social Media to say how much he loves New Zealand Jimmy Fallon and a whole lotta musical superstars nail "We Are The Champions" The Edge Top 100 songs of 2014 - who made #1? Become a fan of The Edge on Facebook and on Twitter .