| 100% | BABALU | 6 | Ricky Ricardo's signature song |
| 92% | BABALU | 6 | Ricky Ricardo's signature song on "I Love Lucy" |
| 62% | BABALU | 6 | Ricky's signature song on "I Love Lucy" |
| 55% | FEVER | 5 | Peggy Lee's signature song |
| 55% | BABALU | 6 | Desi Arnaz's signature song |
| 55% | DOWNTOWN | 8 | Petula Clark's signature song |
| 55% | LAVIEENROSE | 11 | Edith Piaf's signature song |
| 54% | FRED | 4 | Ricky Ricardo's landlord |
| 51% | MYWAY | 5 | Sinatra's signature song |
| 49% | BAYOU | 5 | "Blue ___" (Linda Ronstadt's signature song) |
| 49% | ILOVETRASH | 10 | Oscar the Grouch's signature song |
| 48% | OTIS | 4 | He wrote “Respect,” Aretha’s signature song |
| 48% | CHANCHAN | 8 | Buena Vista Social Club's signature song |
| 48% | BROWNSTONE | 10 | Lucy and Ricky Ricardo's residence, e.g. |
| 48% | THANKSFOR | 9 | With 40-Across, 8-Across's signature song |
| 48% | VIE | 3 | Edith Piaf's signature song, "La ___ en rose" |
| 48% | PIANO | 5 | With 15-Across, Billy Joel's signature song |
| 46% | WALKON | 6 | With 43-Across, Lou Reed's signature song: 2 wds. |
| 45% | UNUSUAL | 7 | Singer Tom Jones' signature song: It's Not __ |
| 45% | THEME | 5 | Signature song |
| 43% | ATLAST | 6 | Etta James' signature song |
| 43% | REHAB | 5 | Place to get clean and also the title of 16a's signature song |
| 42% | IGOTORIO | 8 | Signature song of Peter Allen |
| 42% | UCANTTOUCHTHIS | 14 | Signature song for MC Hammer |
| 42% | RESPECT | 7 | Signature song of 16-Across |
| 42% | DAYO | 4 | Signature song for Harry Belafonte |
| 42% | BLUEBAYOU | 9 | Signature song for Linda Ronstadt |
| 42% | ARIA | 4 | Signature song in an opera |
| 42% | TINYBUBBLES | 11 | Don Ho's signature song ... and a hint to this puzzle's circled letters |
| 42% | DUKEELLINGTON | 13 | Jazz bandleader who adopted 45-Across as his orchestra's signature song (2 wds.) |