R&B singer B. Smyth has died at age 28.

His brother, Denzil Smith, shared the sad news on Instagram, revealing the singer passed away Thursday morning of "respiratory failure after a long battle with pulmonary fibrosis."

"My brother was very excited to see a lot of you create challenges for his latest released single #Twerkoholic part 2 while he was in the ICU, it really brought him a big smile to his face," he wrote in the caption.

"So on behalf of my brother and my family we want to say thank you to all of you for all of your love & support throughout the years," he added. "We ask for privacy during these difficult times."

B. Smyth, born Brandon Smith, was known for his 2014 song "Twerkaholic" and his 2012 collab with 2 Chainz, "Leggo," which peaked at number 12 on Billboard's Hot R&B Songs chart. His single "Twerkaholic Part 2" was just released last month.

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