Related Clues:

• Sonnet's rhyme scheme, in part
• A famous pop group; the rhyme scheme used twice to begin a Petrarchan sonnet
• "Mamma Mia" group
• Common core
• Palindromic Swedish group
• 'Honey Honey' band
• Singers unchanged having turned up
• Printer’s measures
• “The Winner Takes It All” band
• "Fernando" group
• Supergroup from Sweden
• Swedish group going east or west
• Mama Mia band
• Bestselling pop quartet
• Sailor, reflective sailor in group