It's one of the reasons the music charts have always been so compelling: the cruel reality that the exciting new act that has taken the Top 40 by storm may not in fact be the next Beatles, Beyonce or even Basement Jaxx – but could be one more case of here today, gone and forgotten tomorrow. Or almost forgotten – because this is a look into the darkest corners of the BBC’s music archives for a reminder of songs by the likes of The Las, The Mock Turtles, Joan Jett and Kim Carnes. There are also some surprising names on the list: Don Henley, Patti Smith, Curtis Mayfield and John Denver - stars who perhaps enjoyed hit albums, or success with other groups, but when it came to singles, once was sadly enough.