I've seen this gentleman, Dale Davis, with Amy Winehouse and a variety of other British and American acts. He plays both violin-shaped and club basses from Hofner to very good effect.
John Stirratt from Wilco keeps one in regular rotation and I'm pretty positive this is his Club bass in the studio, playing one of my favorite Stirratt bass lines none the less (though they're all pretty stellar and he's always got great tone dialed in)