In 2012, Offset lost his grandmother, Sallie Ann Smith, to bladder cancer. She played a large part in his life, acting as a mentor and role model. Five years later, the Migos member is honoring her with a $500,000 fundraiser for the American Cancer Society.

According to the American Cancer Society’s page, the funds will be allocated to help promote cancer prevention as well as increasing the access to care in under-resourced neighborhoods. To add to this, some of the money raised will be used to fund an ACS Research Grant aimed at bladder cancer research.

Fans who donate $10 or more to the campaign will be entered into a competition to go shopping with Offset in Los Angeles, according to the official contest page.

In a statement, Offset touched on how it felt to lose his grandmother.

“It was really tough losing my grandma to cancer and one of the hardest things I have dealt with in my life,” he said in a statement shared by the American Cancer Society’s page. “She motivated me to do my best and go for it; one of my biggest coaches.”

Offset’s mother, Latabia Woodward, has been an ACS volunteer and supporter for the last 10 years. She’s proud of her son for contributing to the fight against cancer.

“Losing a loved one to cancer is devastating, and we need to continue to help educate our communities about early detection and screening guidelines,” she added. “I am incredibly proud of Offset’s desire to help save the lives of others, genuine heart, and talent as an artist.”

To donate to the campaign, visit the American Cancer Society’s donation page.