CREATE TABLE table_name_26 (weeks_on_top VARCHAR(255), artist VARCHAR(255), issue_date_s_ VARCHAR(255))
An artist of the Beatles with an issue date(s) of 19 September has what as the listed weeks on top?
    
SQL: SELECT weeks_on_top FROM table_name_26 WHERE artist = "the beatles" AND issue_date_s_ = "19 september"