Related Clues:

• Was in the choir
• Trilled
• "__ you so!"
• Gave away
• Acted like a rat
• Was a snitch
• Performed in a chorus
• Emulated Pavarotti
• Imitated a bird
• Performed as a vocalist
• Broke the news
• Passed notes?
• Performed at a cabaret
• Took the mic
• Ratted (on)