Debaets, Belgium; and Alfred Letourneur, France, were making from $500 to $750 a day. Amateurs who had just turned pro, and still had to prove their worth, were paid the beginners' rate of $100 a day. Sixes attracted enthusiasts and celebrities. Knute Rockne, George Raft, Barbara Stanwyck, and Otto Kruger were fans. Kruger used to invite riders home. Bing Crosby – whose presence at a track guaranteed he would be met by song-publishers' touts offering him music – was said to pay the hospital bills of riders who fell. The actress Peggy Joyce – whose wealth was such that Cole Porter wrote a lyric that said My string of Rolls-Royces, is longer than Peggy Joyce's – gave regular $200 bonus prizes, or primes. She was so delighted when a band in the track centre played Pretty Peggy with eyes of Blue that she put up $1,000. Racing was at its hardest when the stands were full. Riders took it easy when they were empty and circled the track reading newspapers, talking, even writing letters as they pedalled with one foot, the other steering the handlebars. But sometimes a team would attack when things were quiet. Jimmy Walthour remembered one such night in 1933: Six-day racing was popular in the United States until the Second World War. Then the rise of the automobile and the Great Depression brought a decline. Dickow said: "Attempts were made to revive the sport by several different promoters but none of them managed to restore bike racing to its former popularity." A further problem was that the more promoters brought in European opposition to spice up races for a potential crowd, the more the Europeans dominated and lessened the appeal for spectators. Jerry Rodman, one of the American riders, said: "In previous years, six-day bicycle racing faded only as a result of war or depression. Under the promotion of Harry Mendel, however, the sport, for the first time began to decline due to lack of spectator interest." Annual sixes in Boston were discontinued in 1933, Detroit in 1936, and Chicago in 1948. The Six Days of New York hung on until 1950. There were some revivals but none succeeded. Sporting Cyclist published a picture of the last night of the Chicago six in 1957 being ridden with seven people in the quarter of the stands that the camera caught. European popularity The success of madisons in