I dunno... just heard it and liked it, I guess.
I grew up listening to 40s-50s-60s Country at home... my Dad's favorite was Hank Williams (Hank Williams performing "I'm So Lonesome I Could Cry", my vote for saddest song ever). In the 70s my favorite was Paul McCartney & Wings... then I learned that Paul had been in a band before that, and I became a latter-day Beatlemaniac. From that, got into 60's psychedelic rock (Jimi Hendrix performing "Are You Experienced?" totally trips me out.) Got into New Wave and 80's pop in the 80's, then back into Country in the 90s.
Somewhere in there I picked up an appreciation for swing music, especially Benny Goodman. I don't remember when or how!
I like Hank, too...got a bunch of his stuff. They're among my favorite albums to put on in the car and sing along with, yodeling included. ;-) And as a guitarist, I love the fact that most of his songs are just three or four chords...and how much he could put into a song that musically is fairly simple.
I have a weird variety of stuff...everything from big band jazz, crooners from the 40s and 50s and Hank...all the way to Scottish rock (Wolfstone), traditional Irish music and opera. Don't have really any rock, though, and I know very little about 70s and 80s music (except a few country songs). That's probably the biggest hole in my knowledge of popular music.