Prior commitments brought the band back to the UK in July 1983, including a charity gig playing in front of Prince Charles and Princess Diana at Villa Park. It was later revealed that the Irish Republican Army had plotted to plant a bomb at the concert in order to injure Charles and Diana, but the IRA member sent to carry out the plot, Sean O'Callaghan, was in fact an informant working for the Irish Government and successfully helped to pull the plug on the operation.