An entertainer has prevented a tabloid newspaper from printing details of his extramarital affairs in a case that is expected to trigger a fresh round of legal battles between celebrities and newspapers over privacy injunctions. The “well-known” individual who is referred to in the judgment of the case by the initials PJS, and his wife, referred to as YMA, are both described as public figures. He is reported to have had a “three-way sexual encounter” with another couple more than four years ago.