Well, there's a difference between using altered chords, chord progressions, and play styles...But to steal the same format and the same beat, while only strumming once per measure rather than 4 times is a completely different ball game.
Chicago plays 4 strums per measure, so it's Power Chord on 5E 4 times, then they switch to power chord on 3E 4 times, etc.
Green Day plays power chord on 5E once per measure, then next measure, Power Chord on 3E.... etc.
It follows the exact format. That's what normal people call plagiarism and theift.
Now STFU with "ALL MUSIK IS TEH SAME" 'cause it's not.
Yeah, they are. I love Boston. An interesting bit of trivia I found out from Rock Band, the lead guitarist wrote Foreplay only after a year of learning how to play the Guitar...
It sounds like a long time... but listen to Foreplay, and think about someone only playing after a year... granted I believe he had a background in music prior... But even still, the musicianship in it, is just amazing.