Like two star-crossed lovers, Billy Joel essentially has Linda Ronstadt to thank for giving him an entire career. To be fair, that makes it sound like she has a secret side hustle as a talent agent, which none of us know about. That’s not quite the case. But even still, it remains true that if she had not been in the right place at the right time, Joel might not have had his decades-spanning stint as a performer to show for himself. After all, …