| Clue | Source | Date |
|---|---|---|
| "Knock on Wood" singer | USA Today Quick | 01 Jul 2025 |
| ___ Stewart, singer of the 1979 hit Knock on Wood (4) | ||
| ____ Stewart, singer noted for her 1979 cover of the song Knock On Wood (4) | ||
| Singer Stewart | Commuter | 05 Nov 2024 |
| ___ Stewart, Knock on Wood singer (4) | ||
| ___ Stewart, singer of the 1979 #1 hit 'Knock on Wood' | New York Times | 18 Jun 2016 |
| ___ Stewart, singer of the 1979 #1 hit "Knock on Wood" |