"Abracadabra" was inspired by Diana Ross and The Supremes. Steve Miller first met the girl group when they performed together on NBC's Hullabaloo in 1966, and he wrote the lyrics after spotting Diana Ross skiing in the mountains years later.
Ronnie Dunn wrote "Boot Scootin' Boogie" before he teamed up with Kix Brooks to form Brooks & Dunn. It was originally recorded by the country group Asleep At The Wheel, but Brooks & Dunn did it themselves when it got its own line dance.
Who writes a song about a name they found in a phone book? That's just one of the everyday things these guys find to sing about. Anything in their field of vision or general scope of knowledge is fair game. If you cross paths with them, so are you.