I didn't know that song (Hearts) was his either. As soon I read the opening line from the song in your post, it started playing in my head.Many moons ago, I heard an AOR-style song on the radio with the opening line "Is everything alright?". I never caught the announcement from the DJ of who was the singer. Then, I mentioned it to a schoolmate and he said, "oh, that's a Marty Balin song". I went, "Marty Balin? THAT Marty Balin? Jefferson Airplane?!"..... I still enjoy listening to that song to this day.