Related Clues:

• ''Of Thee I ___''
• Try out for ''American Idol''
• Save one's own neck, maybe
• Tell all?
• Turn informer
• Participate at karaoke night
• Be a stoolie
• Do a medley, say
• Croon
• Apple pie seasoning
• Birds do it
• Serenade
• Do numbers
• Perform in an opera
• Be a stool pigeon