Does anyone else hear this?

Sometimes, I wonder if I'm the only one who hears the common ground between certain tunes.  For instance, does anyone else who hears Nilsson's "Gotta Get Up" think, "Billy Joel could sing that. I don't know if he would have written such a song, but his voice fits it?"  Or, when listening to Gerry Rafferty's "Night Owl," has anyone else ever thought, "This could segue with ABBA's 'Take A Chance On Me.'  'Night Owl''s opening riff sounds like a slower version of Take A Chance...''s theme?"  Or, am I hearing things in those songs that aren't there to the extent I think they are?  Is there wisdom I should heed from Paul Simon's "Think Too Much (B)" or "Think Too Much (A)?" I wonder...