Possible Clues:

• 'You've got that all wrong!'
• "It's all wrong!"
• 'Wrong, wrong, all wrong!'
• 'Wrong! All wrong!'
• Sharp rejection
• Girl group's debut song -- a hit, not a failure
• 'You screwed it all up!'
• 'Stop! You're doing it all wrong!'
• 'Every single word you just said was wrong'
• Words that can precede the last words of 19-, 39- and 60-Across