The Scorpions and UFO guitarist is also a very prolific songwriter - he explains how he writes with his various groups, and why he was so keen to get out of Germany and into England.
The Jayhawks' song "Big Star" has special meaning to Gary, who explains how longevity and inspiration have trumped adulation.
The Brazilian rocker sees pictures in his riffs. When he came up with one of his gnarliest songs, there was a riot going on.
The revered singer-songwriter talks inspiration and explains why she put a mahout in "Drop the Pilot."
Is Owl City on a quest for another hit like "Fireflies?" Adam answers that question and explains the influences behind many others.
Wilder's hit "Break My Stride" had an unlikely inspiration: a famous record mogul who rejected it.