10 Huge YouTube Stars You've Probably Never Heard Of

On Ho's channel, "Blogilates," you'll find intense pilates workouts set to upbeat pop music. She also keeps her blog filled with helpful recipes, workout calendars, and other forms of healthy living inspiration.

Subscribers: 1,323,503

Views: 108,501,571

Estimated annual channel revenue: $92,240

Dude Perfect was born after five guys who met at a Bible study at Texas A&M uploaded 20 of their best trick shots to YouTube. Five years and 263 million views later, Dude Perfect is one of YouTube's most valuable brands. They've even come out with a book and their own iPhone game.

Subscribers: 2,594,299

Views: 263,464,428

Estimated annual channel revenue: $175,039

On his channel, MattyB does G-rated covers of popular songs by artists like Pitbull, Justin Bieber, and Macklemore. In March, he signed a content deal with Endemol Beyond USA to create a web series based on his everyday life.

Subscribers: 2,315,259

Views: 909,890,803

Estimated annual channel revenue: $175,765

With her GIY ("Glam-It-Yourself") videos, Miss Glamorazzi puts a fun, creative take on your daily beauty routine. Her channel has an extremely devoted fanbase.

Subscribers: 2,569,310

Views: 176,518,174

Estimated annual channel revenue: $186,999

Among the most popular videos on Rosanna's "Nerdy Nummies" channel are tutorials on nerd-themed creations like "Space Invaders Chocolates," "Pi Pie Pops," and "Princess Peach Cobbler" If you live in New York City, you may recognize Rosanna from her subway ad.

Subscribers: 1,935,946

Views: 306,669,190

Estimated annual channel revenue: $199,625

Postmodern Jukebox infuses today's biggest pop songs with old-timey jazz and ragtime influences. Bradlee arranges the music and plays the piano, while the rest of the band is a rotating group of musicians. The group recently announced a 22-city tour, and many of the shows are selling out quickly.

Subscribers: 504,836

Views: 70,770,048

Estimated annual channel revenue: $234,130

After being eliminated from the ninth season of the singing competition show in 2010, Hall brought his singing, songwriting, and choreographing skills to YouTube, where his music videos started getting a lot of attention. He's now being represented by Scooter Braun, the manager best known for discovering Justin Bieber. Hall also choreographed "Blow," a music video off of Beyonce's visual album.

Subscribers: 826,267

Views: 97,000,781

Estimated annual channel revenue: $425,397

Zoe — or "Zoella" as she's known on her blog and YouTube channel — is a 25-year-old beauty guru based in Brighton, England. In addition to her style tutorials, she loves making videos of things she just bought while shopping. New York Magazine declared Zoella the "queen of haul vloggers," a group of YouTube stars who post about their recent purchases.

Subscribers: 4,661,063

Views: 180,343,335

Estimated annual channel revenue: $546,300

From goofy music videos to spoofs on "Man vs. Wild," Higa's channel has something for everyone. He's raked in more than 12.2 million subscribers since launching his channel in 2006, and he's one of an elite group of YouTubers with more than 1 billion views.

Subscribers: 12,237,111

Views: 1,785,742,299

Estimated annual channel revenue: $1,459,767

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