Zoella is the online pseudonym of Zoe Sugg, a British YouTuber, author, and entrepreneur. She gained fame through her lifestyle and beauty videos on YouTube, where she shares tips on fashion, makeup, and personal experiences. Her engaging personality and relatable content have attracted millions of subscribers. In addition to her YouTube career, Zoella has authored several books, including a bestselling novel and a series of lifestyle guides. She has also launched her own beauty and lifestyle product lines, further establishing her brand in the digital and retail spaces.