| 100% | PERT | 4 | Shampoo/conditioner whose bottles call it "the original 2 in 1" |
| 91% | PERT | 4 | Shampoo whose bottles call it "the original 2 in 1" |
| 38% | PERT | 4 | ___ 2-in-1 (combination shampoo-conditioner with a green bottle) |
| 36% | JONASBROTHERS | 13 | Pop trio whose "Like It's Christmas" topped the Adult Contemporary chart in 2019: 2 wds. |
| 36% | VARIABLE | 8 | In the answers to 17-, 34- and 57-Across, it was replaced in turn by 1, 2, 3, 4, 5 ... |
| 35% | ANNAMAZZOLA | 11 | Author whose novel "The Unseeing" won the 2018 Edgar Award in the Best Paperback Original category: 2 wds. |
| 35% | DAY | 3 | The 2 in 1/2, e.g. |
| 35% | HARRYSTYLES | 11 | Singer whose "As It Was" won the MTV Video Music Award for Best Pop Video in 2022: 2 wds. |
| 35% | RONWEASLEY | 10 | The character Rupert Grint - whose birthday it is today - shot to fame playing in the "Harry Potter" series of films: 2 wds. |
| 35% | PATTYLOVELESS | 13 | "Blame It on Your Heart" singer whose "Mountain Soul II" won the Best Bluegrass Album Grammy in 2011: 2 wds. |
| 34% | BRETTELDREDGE | 13 | Country singer whose "Baby, It's Cold Outside" topped the Adult Contemporary chart in 2017: 2 wds. |
| 34% | HEADS | 5 | "Call it in the air" call |
| 34% | SUM | 3 | The "2" in "1 + 1 = 2" |
| 34% | FUNNYGAMES | 10 | A 2007 psychological thriller starring Naomi Watts - whose birthday it is today - in the lead role alongside Tim Roth: 2 wds. |
| 34% | STEVIEWONDER | 12 | Soul singer whose 1976 album "Songs in the Key of Life" spent its first 13 weeks atop the Billboard 200: 2 wds. |
| 34% | THEMATRIX | 9 | A 1999 Sci-Fi film in which Keanu Reeves - whose birthday it is today - portrays the main character, named "Neo": 2 wds. |
| 33% | ICEHOCKEY | 9 | Popular winter sport whose origin may be disputed but the game in its contemporary form was first played in Montreal, Canada: 2 wds. |
| 33% | CHUCKLIDDELL | 12 | Former UFC fighter - whose birthday it is today - considered one of the greatest. Has appeared in "Drillbit Taylor" and "War Pigs": 2 wds. |
| 33% | MAHERSHALAALI | 13 | Actor whose role in 2018's "Green Book" is the longest Best Supporting Actor-winning performance (screen time 1:06:38): 2 wds. |
| 33% | ADDENDS | 7 | The 1 and 2 in 1 + 2 = 3 |
| 32% | MOONSTRUCK | 10 | It won the Best Original Screenplay Oscar in 1988 |
| 32% | SOS | 3 | The Police's "Message in a Bottle" distress call |
| 32% | ATM | 3 | It's called a cashpoint in the U.K. |
| 32% | KEROSENE | 8 | It's called paraffin oil in the U.K. |
| 32% | DIAPER | 6 | It's called a "nappy" in the U.K. |
| 32% | BENKINGSLEY | 11 | Actor whose birthday it is today who won an Academy Award for playing Gandhi in the titular film and was knighted in 2002: 2 wds. |
| 32% | CRIMESCENE | 10 | "CSI: ___," with 31-Across, the name of a TV show Liev Schreiber - whose birthday it is today - guest starred in as Michael Keppler: 2 wds. |
| 32% | LIZAMINNELLI | 12 | American actress whose birthday it is today and is known for her widely acclaimed role as Sally Bowles in the musical film "Cabaret": 2 wds. |
| 32% | CARLSAGAN | 9 | Host of the original 1980 PBS series called 33-Across: 2 wds. |
| 32% | OPERAND | 7 | Either 1, in the equation 1 + 1 = 2 |