The 16 Willowbrook students listed below have been named as Illinois Music Education Association (ILMEA) All-District Musicians for District 9.
| Student name | Performance group | Instrument/voice range |
| Junior Isabel Bathje | Senior Treble Chorus | Alto II |
| Senior Jaclyn Bryers | Senior Band | Trombone * Earned first chair "principal" position |
| Junior Elizabeth Deany | Senior Treble Chorus | Alto I |
| Senior Shannon Freer | Senior Chorus | Soprano II |
| Freshman Eloise Haak | Senior Orchestra | Violin |
| Junior Adeline (Addy) Haak | Senior Orchestra and Senior Treble Chorus | Viola and Alto I |
| Senior Malachy Heneghan | Senior Chorus | Bass I |
| Sophomore Niamh Lashmet | Senior Chorus | Soprano II |
| Junior Christina Legutki | Senior Band | Trumpet * Earned first chair "principal" position |
| Junior Hannah Lenhart | Senior Treble Chorus | Alto I |
| Junior Alaina Marino | Senior Treble Chorus | Soprano II |
| Senior Allison Smaczny | Senior Chorus | Alto I |
| Freshman Andrew Urton | Senior Chorus | Tenor I |
| Junior Megan Usry | Senior Treble Chorus | Alto I |
| Junior Kaye Valencia | Senior Chorus | Soprano II |
| Senior Isabel Weaver | Senior Chorus and Senior Vocal Jazz III | Soprano I and Soprano |
The Senior Jazz Festival will take place on Nov. 1 at Neuqua Valley High School, and the Senior Concert Festival will take place on Nov. 8 at Dundee-Crown High School. For more information, go to https://ilmea.org/d9info.