Complex sentence: William Henry "Hank" Green II (born 5 May 1980) is an American entrepreneur, musician, biochemist and vlogger, well known for his YouTube channel, VlogBrothers where he regularly uploads videos along with his brother, John Green.
Split into simpler sentences: William Henry "Hank" Green II (born 5 May 1980) is an American entrepreneur, musician, and vlogger. He is best known for his YouTube channel, VlogBrothers where he regularly uploads videos along with his brother, John Green.