All the Stars We've Lost in 2022

YouTube star Keenan Cahill died at age 27 on Dec. 29. His family announced his death, which was due from open-heart surgery complications, on Facebook.

"Keenan is an inspiration and let's celebrate by remembering all the content he created, artists he collaborated with, music he produced and the love he had for everyone who supported him over the years," the family wrote.

During his career, Cahill collaborated with a number of big name stars for his popular lip-sync videos on YouTube. Artists he worked with include Katy Perry, Ariana Grande, Britney Spears, Justin Bieber, and Tyra Banks.