Hila Klein is the co-host of the comedy YouTube channel h3h3Productions alongside her husband Ethan Klein. Known for their prank and reaction videos, their channel has amassed over 5 million subscribers. In addition to h3h3Productions, Hila and Ethan also run a comedy podcast channel called Ethan and Hila, which was approaching 500,000 subscribers in 2016. Hila made her first appearance on the h3h3Productions channel in June 2014 with a video titled "How to kiss -- h3h3 reaction video." An artist by profession, her work is showcased on her self-titled website. Moreover, she has been the CEO of the Teddy Fresh clothing line, which is celebrated for its vibrant patterns and colorful fabrics.