Grammy and CMA nominated songwriter and producer Busbee passed away earlier today.

He most recently produced albums for Keith Urban, Maren Morris, Lady Antebellum and Carly Pearce and also worked with pop stars 5 Seconds Of Summer, Christina Aguilera, P!nk and Shakira.

Variety have reported that Busbee was diagnosed with Glioblastoma, a form of brain cancer, during the North American summer.

He was just 43.

Busbee, who really liked the “Nashville way of doing things” produced Maren Morris’ first Sony Nashville album Hero, which featured her breakout hit ‘My Church,’ which he also co-wrote.

He also produced 11 of the 14 tracks on her latest album, GIRL.

That album is nominated for the upcoming CMA Awards.

Following the news, Maren wrote the following message on instagram:

“This just doesn’t seem fair. I will always love you and the songs and albums I was lucky to make with you, Busbee. Rest well, my sweet friend. 💔”

In 2016, Busbee produced Keith Urban’s album, Ripcord, and Lady Antebellum’s 2017 release Heart Break.

He had a worldwide publishing deal with Warner/Chappell Music and a creative partnership with Red Light Management.

Carly Pearce shared a video of herself singing their hit co-write, ‘Every Little Thing’ earlier today.

“I sang ‘Every Little Thing’ tonight through broken tears with thousands of voices and cell phone lights in the air, because I asked them to raise them up high so you could see them shining through heaven,” she wrote in her social media tribute.