Rock & Roll Hall of Famer and British singer-songwriter Cat Stevens, who also goes by Yusuf, has postponed his North American tour that was due to begin Oct. 2 due to visa issues, he announced Monday. (Photo by Gus Stewart/Redferns) RedfernsBritish singer Cat Stevens, who also goes by Yusuf, has postponed his tour dates in North America due to visa issues, he announced Monday. Stevens “Road to Findout” tour was scheduled to begin Oct. 2 at The Met in Philadelphia. Stevens said his tour dates across North America are still a possibility, pending visa approvals. “North American audiences may still get a chance to see the tour if visa approvals eventually come through,” he said.