Sweden's PewDiePie was one of the first to make a career out of playing video games on YouTube. They're called "Let's Play" clips, and they're pretty hilarious.
Was there a YouTube before Bethany Mota? She started as a teen (homegirl is only 20 now) giving makeup tutorials, DIY tips and much more. She's adorable as hell, and it should come as no surprise that she's here to stay.
Lilly Singh is an Indo-Canadian YouTube celeb and much of her rapping deals with that identity. She's perhaps best-known as "IISuperwomanII," an alias that allows her to document her day-to-day activities in a fun and engaging way.
If anyone tells you YouTube stardom is not a sustainable career, they're lying. Smosh have been in the game for over a decade now, and continue to grow in prominence with each passing day.
Jenna Marbles' comedy typically pokes fun at gender stereotypes and various societal norms, and has earned a dedicated YouTube following.
Grace Helbig is much more of a comedian and actress than anything else--just watch her explain the concept of Netflix and Chill to her mom above. Who wouldn't wanna watch that?
Kingsley is also a pop culture commentator, and goes about it in a way that makes you feel like you're hanging out with a hilarious BFF instead of watching a comedy act. It's the best.
Markiplier is the man to go to if you're looking for video game play and commentary. If you're a nerd, seriously, look no further.
Destin Sandlin is the creator of "Smarter Every Day," a YouTube series designed to, you know, make you learn about stuff and get smarter every day. Here he is interviewing President Obama. Impressive stuff!
If makeup tutorials are your thing, Ingrid Nilsen is a name you need to know. She's brilliant.
Zoella is the other makeup maven to know. Trust us.
Michelle Phan is also a master of the cosmetic arts but she does it in the best way: She ensures different skin tones, ethnicities, races, etc. are represented. Let's hope she's inspiring a new wave of diverse thinking.
Matt Bellassai began as a BuzzFeed reporter before becoming an Internet icon with his weekly series, "Whine About It," where he gets drunk at his desk and complains about stuff. It's a sight to be seen.
Cosign Joe Sugg.
Don't get him confused for the Smosh guys, though they look extraordinarily similar. Shane Dawson is a YouTube OG and now makes videos that mostly revolve around challenges and reacting to everyday items and occurrences. It gets silly, and quickly.