The mini-theme for #10 & #11 this week is titled: "Insults for Dogs". Here we go. In anticipation of their Las Vegas residency, members of the rock band Def Leppard have assured casual fans that they will be mainly playing their hits from the 1980s. The record producer for these hits was Robert Lange. Also known for his work with ex-wife Shania Twain, what is Lange's nickname?