Every day on Radio Nova, just before 11am, we play a couple of songs key to “today in music history” Have a listen! August 3rd in Music History looks like this. Check Out Marty Miller's Music History Podcast Here! 1987, Def Leppard released their fourth studio album Hysteria which became their best selling album to date, selling over 20 million copies worldwide. Check Out Marty Miller's Music History Podcast Here!