Related Clues:

• Part of many a refrain
• Famous White House pooch
• -- Vegas
• Part of UNLV
• Singing sounds
• Vegas headliner
• Argentine article
• Singer's filler
• Onetime White House pooch
• Refrain snippet
• 'Deck the Halls' syllables
• Vegas --
• Syllables in 'Deck the Halls'
• Singer's warm-up syllables
• -- Cruces