Sir Paul McCartney has joined a campaign to block legislation which proposes to allow a rail link to built underneath the former beatle's London headquarters. The HEY JUDE legend is convinced the Crossrail Bill, if given the go ahead, will render the recording studio at his Soho offices useless due to the vibrations caused by tunnelling, and then passing trains. In a strongly-worded letter from his lawyers, the 64-year-old demands compensation if construction goes ahead because "musical and recording activities are susceptible to interference", British newspaper The Sun reports.