Supposedly Chrissie Hynde's father was a Rush fan at one point, so she didn't object to Rush sampling her song for the show's intro out of respect for her father. That's how I remember Rush explaining it. Can't quite remember why that song was chosen though but you knew it was time for Rush whenever it started to play.
Chances are she received many magnitudes more exposure to this song due to Rush using it. I'm sure it didn't hurt her bottom line.
RIP Rush.
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