Related Clues:

• ___ la la
• Start of a refrain
• Lilt syllable
• Carefree singing syllable
• Refrain snippet
• Part of a chorus line?
• La la forerunner
• ___-la
• Start of a lilt, perhaps
• ___ -la-la
• -- la la
• Start of a musical refrain
• Refrain start
• Singsong sound
•     Sung syllable