By Tom Blow Rory McIlroy celebrated winning the Zurich Classic with Shane Lowry by singing Journey’s iconic track ‘Don’t Stop Believin’ on karaoke and enjoying a well-earned beer. McIlroy and Lowry claimed victory in the team event in New Orleans after beating Chad Ramey and Martin Trainer in a play-off. Ramey and Trainer set the clubhouse lead on 25-under before McIlroy and Lowry birdied the last hole to post the same score. McIlroy and Lowry then parred the play-off hole, but Ramey and Trainer failed to follow suit. It’s Lowry’s first victory on the PGA Tour since winning the Open Championsh…