Related Clues:

• 'I didn't know that!'
• Cousin of 'hmmm!'
• 'My ___!'
• See 42-Down
• 'That's so pretty!'
• Squeal of delight
• 'Praise be to ___!'
• 'My stars!'
• See 21-Across
• 'Good one!'
• 'Heavens!'
• Expression of excitement
• La-la preceder
• 'What a view!'
• 'That's incredible!'