Steven Tyler, lead singer for Aerosmith, has undergone recent surgery for an undisclosed illness. Because of this the band has been forced to cancel its North American tour. Tyler is 58.....The Indian Casinos have given new life to some performers who may have had trouble booking dates to perform. Among those who are taking advantage of the new forums are Connie Francis, Mary Wilson (of Supremes fame), David Cassidy, and Patti Page.....Queen is also touring and playing in large venues. It is their first tour since 1991 when lead singer Freddie Mercury died. Paul Rodgers, formerly of Free and Bad Company, has taken over the vocal duties. (Comments? azjimmcallister@cox.net.)