On this day in music history: January 5, 1980 – “On The Radio – Greatest Hits – Volumes I & II” by Donna Summer hits #1 on the Billboard Top 200 for 1 week. Produced by Giorgio Moroder, Pete Bellotte, Bob Esty and Gary Klein, it is recorded at Musicland Studios in Munich,.Germany, Rusk Sound Studios in Hollywood, CA and Village Recorders in Los Angeles, CA from May 1975 – August 1979. The sixteen track double LP set features Summer’s hit singles released between 1975 and 1979 as well as two new tracks (“No More Tears (Enough Is Enough)” w/ Barbra Streisand (#1 Pop), and the title track (#5 Pop) ). The majority of the tracks are remixed and edited to fit the large number of songs onto four LP sides. Many of the tracks are segued into each other for continuous play on each side. The set also comes packaged with a poster of the album cover artwork. “Radio” is Summer’s final release on Casablanca before she leaves the label. In another unusual move, Casablanca also makes the double album set available as individual volumes, both in the US and internationally. “On The Radio – Greatest Hits – Volumes I & II” is certified 2x Platinum in the US by the RIAA.