This day in music history.

July 14, 1973, During a concert at Knott's Berry Farm by The Everly Brothers, the show is stopped by entertainment director Bill Hollingshead because he felt Don was having a poor performance. Phil got angry, smashed his guitar and walked off the stage. Don performed the third set alone before telling the audience that him and his brother would never play together again. They wouldn't speak to each other again for 20 years.
I'm Not Angry by Don & Phil Everly under pseudonym Jimmy Howard
I hope your radio won't play until I've had my say
I hope your mail always fails to reach you Until you wanna hear from me
I hope your wristwatch goes berserk But I'm not angry, I'm just hurt
I hope your phone will never ring & you can never sing
I hope your car doesn't start, cannot move Until you wanna be with me
I hope your brand new dress gets torn But I'm not angry, just forlorn
I'll make a voodoo dance to fit with bats & owls We'll haunt your house on rattle chains
We'll hang around until you call my name & tell me that you want me back again
I hope your records always break, your shoes make your feet ache
I hope your luck will get stuck on black cats Until you want a kiss from me
I hope your TV's always bad But I'm not angry, I'm just sad