no harm. Catherall and Sulley's school also agreed to the absence, as it was thought visiting Europe would be educational. The first European tour of The Human League got underway with the two young recruits assigned to dancing and incidental vocal duties. The girls at this stage were just guests in the group on a salary of £30 a week. Although the tour was a success, the crowds were largely hostile to Catherall and Sulley, as fans had bought tickets for the original all male line-up. Catherall recalls dodging several beer cans thrown at her during the tour and was often heckled. During the tour, Oakey had experimented with the girls singing on a number of the original tracks and was impressed with the results; he was also impressed with the girls' professionalism and determination during the tour. On return to Sheffield in December 1980, both girls were made full-time members of The Human League. 1981 and the release of Dare After the tour, Catherall and Sulley returned to school full-time while Wright and Oakey set about composing and songwriting. The new Human League of Sulley, Oakey, Catherall and Wright started to gain ground in early 1981 with the release of the single "Boys and Girls." Although it charted only at number 48, it was the most successful single at that point. The girls were not used in the production, as the song was written without any female backing, and they were busy with school. They later featured on the record sleeve and in promotional photo shoots. Soon after Boys and Girls came the recruitment of professional musicians Ian Burden and Jo Callis, which sharpened the band's output considerably. The release of the next single, "Sound of the Crowd", was the band's commercial breakthrough. It was also the first single to include both Catherall's and Sulley's full vocals, rather than incidentals and "ad libs". The band were invited to play on the UK's principal music programme BBC TV's Top of the Pops with only a few hours' notice. The first Catherall knew about her first appearance on TV was when Sulley's mother rushed to collect her and Sulley from school mid-lessons for the drive to the London studios. By this time, the music video had become highly popular for broadcast TV. Spurred on by pre-filmed promos and live TV appearances, the band started to refine their personal appearance styles for