It’s happening!
Peter Parker, the Spectacular Spider-Man (Vol. 1) #100
Published: c. December, 1984?
Cover Date: March, 1985
“Breakin’!”
Writer: Al Milgrom
Artist: Al Milgrom
Inker: Geof Isherwood and Vince Colletta
Letterer: Diana Albers
Colorist: Bob Sharen
@hornacek: It really is the title of the issue!
Wait, this issue was titled Breakin’? With the single quotation mark and everything? I had never heard of that movie when I read this issue when it came out, but within the past year I have seen B1 and its sequel (Electric Boogaloo). So I find this title very funny.