Fashion icon Alexa Chung (pictured) has split up from Arctic Monkeys frontman Alex Turner.

The pair have gone their separate ways after 4 years together.

The indie power couple were reportedly living increasingly separate lives with Alexa setting up house in New York where she is due to front a new fashion TV show and Alex embarking on a world tour.

 “Things haven’t been going well and they haven’t seemed like a couple for the past few weeks. At Glastonbury festival, they barely said a word to each other,” a source told The Mirror

“Alexa was out seeing bands with all her buddies like Pixie Geldof and Fifi Brown, while Alex was on his tour bus chilling with his band. They really wanted to give it a go to hold it together and seemed to be getting back on track – but things got bad again and they both decided enough was enough.”

“They want to stay friends so it’s best to split now. They’ve been through a lot together and all their friends are sad they’ve called time as a couple.”

 “Alexa and Alex both wanted things to work,” the source added.

“It was best that they both got out now and saved their friendship.”

Chung's spokeswoman Liz Matthews confirmed last night: “It’s completely amicable – but yes it’s true. They have split.”