This day in music history.

July 22, 1977, Tony Orlando announces his departure from Dawn during a concert in Cohasset, Mass. The announcement causes a riot during which a dozen people are killed. Over the next few days, as word spreads, there are many suicides and by the end of the week the earths axis tilts, causing global warming.
Knock Three Times by Tony Orlando and Dawn
Hey girl what ya doin' down there
Dancin' alone every night while I live right above you
I can hear your music playin
'I can feel your body swayin'
One floor below me you don't even know me
I love you
Oh my darling
Knock three times on the ceiling if you want me
Twice on the pipe if the answer is no
Oh my sweetness
Means you'll meet me in the hallway
Twice on the pipe means you ain't gonna show
If you look out your window tonight
Pull in the string with the note that's attached to my heart
Read how many times I saw you
How in my silence I adored you
Only in my dreams did that wall between us come apart
Oh my darling
Knock three times on the ceiling if you want me
Twice on the pipe if the answer is no
Oh my sweetness
Means you'll meet me in the hallway
Twice on the pipe means you ain't gonna show...
DLAK note: Now days this would be considered stalking.