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Related Clues:
- ''SOS'' singers
- 'Mummy' has three
- Band from Stockholm
- "Mamma Mia" inspiration
- 9-1-1 grp.
- Grp. called after an accident
- Their songs are in ''Mamma Mia!''
- Marilyn's monogram
- Pop group spelled with a backward letter
- German spa, Bad ___
- ''S.O.S.'' group
- Acronymic singing group
- "Super Trouper" band
- 'Dancing Queen' singers
- Med. staff with a 'Star of Life' logo