Signature video Sherlock Parody , in which the great detective solves the cases of Humpty Dumpty, Goldilocks and more. If you weren't aware that celebrities had bespoke makeup looks, or you are over the age of 16, this is not for you. Not everyone wants to know the chemical structure of a carrot, they want to know why to eat it and when. Green's video blog with his brother Hank aka the Vlogbrothers was a major inspiration here. Pitch The go-to woman if you want to learn precise techniques for recreating celebrity makeup looks. Vliegenthart mainly focuses on young adult literature Stephenie Meyer's The Host is a favourite but occasionally casts a critical eye on adult fiction The Road , The Virgin Suicides. If you fancy more of the latter, they have a second channel for lighter material, including text message pranks, visits to their beloved Nando's and the obligatory Harlem Shake parody. And instead of just watching a discussion, you can join in yourself. There, that was my crap car analogy of the day. They are now represented by Gleam Digital , a talent agency for social-media stars. Pitch A mix of hard-edged content — rap freestyles delivered straight to camera by attitude-heavy grime artists — and glitzier material: Pitch Strenuous workouts leavened by lots of cheeky-chappie banter. He writes and presents a YouTube show for a Hong Kong-based camera review channel. Her boyfriend, Jim Chapman, is also building up a following as a male grooming and fashion vlogger. In , she was selected for YouTube's NextUp development programme, which allowed her to "buy new equipment, make new friends and move to London", where she now lives. The show also features a variety of how-to guides, and, as you'd expect, it's nicely shot.