Possible Clues:

• Vince Gill's 'Look __'
• Vince Gill's "Look __"
• 'Look ___' (Vince Gill hit)
• "I just don't know why they're shooting __": Hawkeye Pierce
• 'Look ('Aren't we a pair!') --!'
• "Do you bite your thumb __, sir?": "Romeo and Juliet"