It was the kind of song they would first play in a record store and it became an immediate must have. And the entire album didn't disappoint.

As soon as I got home from classes this album was on the turntable.

...the first time I heard Crazy On You.
It was spring of my last semester of undergrad. I was driving to school listening to, almost certainly WDAI, when this song came on.
I thought "What the heck is this?"
They played songs after it & I got to school & I had to wait a couple days before I heard it again to find out who did it.
Made me go buy the album almost immediately.
That intro is awesome.

Always loved Heart. Always will.