If I have satellite radio, it's tuned to Margaritaville radio about 90% of the time.
I listen to quite a few podcasts. If I really want time to fly, it's a podcast or audiobook...i.e. time on an airplane.
If left to my own devices, I listen to a random assortment of music from Buffett to John McCutcheon, Gin Wigmore, old school 80's rock (hair bands!), Zac Brown, Roger Creager, Lyle Lovett, Todd Snider, Robert Earl Keen, John Prine, Scott Kirby, Van Morrison, Warren Zevon, John Mellencamp, etc.
I admit, I struggle with today's 'popular' music. WTH is that noise?