Just "Jessie's Girl"? Did'nt Aldo Nova and Donny Iris break big in that year , too?
KIDDING ASIDE , It's so hard to nail it down to one year , but , someone said these things happened in 10 year intervals -
1956 - Rock'n'Roll (Though hardly new.) is at it's peak.
1966 - Garage Punk and early Psych peaks.
1976 - US and UK Punk BUSTS OPEN WIDE , with Western Europe , Canada , Australia , etc. right at their heels.
That's not to discount the importance of the years '54 , '55 , '64 , '65 , OR '77 , or The Postwar Blues and R'n'B , some of which we might as well call Rock'n'Roll (Wynonie Harris , Big Joe Turner , Amos Milburn , The Treniers , Louis Jordan , Johnny Otis and Louis Prima.), because Rockin is Fuckin'.