I have been spinning this disc for the last week.. Great harmonies and great songs.. Billboard.com did an article on the band and here is how the band describes their sound

""We came up with the idea that it kind of is Pop / Americana," confirms Burr, who has penned hits by artists such as Faith Hill, Conway Twitty, and Garth Brooks. "We set out to make a record like the old records used to be -- where you couldn't tell what the next song was going to be by what you just heard. It could be a different feel, or we could sound like a different band. The connective tissue of this record is the quality of songwriting, the harmonies, and the sound of the voices. Other than that, we jump around from New Orleans to acoustic three-part harmony folk music to pop music. It's a nice journey.""

Full article here:
http://www.billboard.com/articles/columns/the-615/1537946/kenny-loggins-blue-sky-riders-finally-arrive