Mariana Walker didn’t have much time following her fight with cancer – but at least that time was made sweeter by her choir students.

Ms. Walker had been a choir teacher at Alvin Junior High School in Alvin, Texas for 17 years. Her students, after hearing about her release from hospice care, wanted to do something special as a thank you for her constant enthusiasm and encouragement.

The teens gathered outside of her house and sang a heartwarming rendition of “Ocean” by Hillsong United.

12 minutes after the kids left, Ms. Walker passed away.

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“Mrs. Walker marched to a different beat,” Cindi Lee Cooper-Fields, who filmed the video, told ABC News. “She was artistic. She never wanted to be a teacher and taught for 17 years at Alvin Junior High School. Everybody deserved to have a teacher or a friend like this. She went out in style. She did it big she did it her way.”

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