Louis Tomlinson sides with Calvin Harris in Zayn Malik Twitter spat leaving One Direction fans in shock

They had a Twitter spat after Zayn Malik left One Direction and now it looks like Louis Tomlinson and his former bandmate could be at war again.  After Zayn, 22, got into an argument with Calvin Harris, 31, on social media, Louis,23, waded in, showing his support for Calvin by favouriting the Scottish DJ's tweet.  The feud started when Malik retweeted a post comparing Taylor