 Singles by Gloria Gaynor, Tubeway Army, Roxy Music, Blondie ("Sunday Girl") and Lena Martell were also in the top ten best-selling singles of the year.The following table shows artists who achieved two or more top 10 entries in 1979, including singles that reached their peak in 1978 or 1980.The figures include both main artists and featured artists, while appearances on ensemble charity records are also counted for each artist.