| 100% | ENYA | 4 | Irish singer featured on Mario Winans's 2004 hit, "I Don't Wanna Know" |
| 90% | ENYA | 4 | Irish vocalist featured on Mario Winans's 2004 hit, "I Don't Wanna Know" |
| 39% | KIMBRA | 6 | Singer featured on Gotye's "Somebody That I Used to Know" |
| 36% | YEBBA | 5 | One-named singer featured on Ed Sheeran's hit single "Best Part of Me" |
| 35% | CHARLIXCX | 9 | Singer featured on Icona Pop's 2012 hit "I Love It": 2 wds. |
| 33% | NEYO | 4 | Singer featured on Pitbull's "Give Me Everything": Hyph. |
| 33% | XXX | 3 | Singer featured on Doja Cat's "Kiss Me More" |
| 32% | CHARLIXCX | 9 | Singer featured on the chorus of the 2012 hit "I Love It" |
| 32% | BASEMEN | 7 | Who, What and I Don't Know, in Abbott and Costello's "Who's on First?" routine |
| 31% | IDONTWANNAKNOW | 14 | Mario Winans hit that was No. 7 on the "Billboard" Year-End Hot 100 singles of 2004 (4 wds.) |
| 31% | ADELE | 5 | Mononymous singer from London known for hits like "Hello" and "Easy on Me" |
| 31% | TMI | 3 | Texter's "I don't wanna know more!": Abbr. |
| 31% | TMI | 3 | "I don't wanna know these details!" |
| 30% | KERI | 4 | Hilson featured on Timbaland's hit "The Way I Are" |
| 30% | THIRD | 5 | I Don't Know's base |
| 30% | RITAORA | 7 | Singer featured on the Iggy Azalea hit “Black Widow” |
| 30% | NANCYWILSON | 11 | "(You Don't Know) How Glad I Am" singer |
| 30% | SIA | 3 | Australian singer featured on the hit "Titanium" |
| 29% | NATERUESS | 9 | Indie pop singer featured on Pink's 2013 #1 song "Just Give Me a Reason": 2 wds. |
| 29% | BYNOW | 5 | "If You Don't Know Me ___" (Simply Red hit): 2 wds. |
| 29% | WYCLEFJEAN | 10 | Fugees member featured on the Shakira hit single "Hips Don't Lie" (2 wds.) |
| 29% | NEYO | 4 | One-named singer featured on the 2013 hit "Play Hard" |
| 29% | AKON | 4 | One-named singer featured on the 2013 hit "Play Hard" |
| 29% | SZA | 3 | Featured singer on Doja Cat's "Kiss Me More" |
| 28% | SHERYLCROW | 10 | "All I Wanna Do" singer who collaborated with Kid Rock on his biggest pop hit, "Picture," in 2002: 2 wds. |
| 28% | BRYSONTILLER | 12 | "Don't" singer featured on 18-Across: 2 wds. |
| 28% | PUTH | 4 | Singer Charlie featured on Wiz Khalifa's 2015 hit "See You Again" |
| 27% | JARULE | 6 | "Always on Time" singer featured on the 1998 Jay Z hit "Can I Get A ...": 2 wds. |
| 27% | LET | 3 | "Don't ___ Me Down" (Chainsmokers hit featuring Daya) |
| 27% | WITHSOMEBODY | 12 | "I Wanna Dance ___ (Who Loves Me)," number-one hit by Whitney Houston that was featured in the film "13 Going on 30": 2 wds. |