Poor Billy Squier. If ever a single video literally killed a radio star it was his 1984 disaster Rock Me Tonight. Released in July of '84 the Kenny Ortega-directed video was in constant rotation on MTV. I've been reading the book I Want My MTV: The Uncensored Story of the Music Video Revolution which goes into great detail about the infamous fall from grace.
Billy Squier says "I went from 15,000 and 20,000 people a night to 10,000 people. Everything I’d worked for my whole life was crumbling, and I couldn’t stop it. How can a four-minute video do that? Okay, it sucked. So? Kenny Ortega didn’t get hurt by this; I did. That’s ironic. Nobody said, 'I’m not gonna hire him, look what he did to Billy Squier!' He just moved on. The only person who got hurt by it was me. If you want to get really dramatic, you could say the guy crippled me."