Billie Eilish's teacher Mandy Brigham recently shared her fond memories of teaching her choir.

As per PEOPLE report, Brigham, who retired after the 2022-2023 season, reflected on Eilish's time as a member of the Los Angeles Children's Chorus (LACC) and her journey to stardom.

She said, “I have a very clear memory of Billie on her first day in choir. I remember right where she was sitting, and I remember she was sitting up really straight.”

“Everyone's pretty quiet at the first rehearsal because no one comes in knowing anyone else, but she was just really tuned into what was going on,” she further added.

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The outlet shared that during Eilish's four years with the LACC, Brigham witnessed her growth as a performer and songwriter.

Brigham said, “from an early age, I recognized her creativity. She's really her own person, when she was a little bit older, she'd have a notebook, and she'd jot down ideas for lyrics and stuff.”

She also shared a heartfelt moment, stating, “When I retired last year, there was a tribute video made, Billie, Finneas and Maggie all recorded a little, I guess, 'thank you' to me, and it meant a lot to me.”

The choir teacher's impact on Eilish's life was evident when the singer thanked her during her Oscars acceptance speech.