Sam Lansky

There are few artists who have been covered as often or as well as Justin Bieber. The teen singing sensation, who himself got his first start recording home-made videos on YouTube, has spawned a whole new generation of artists who are breathing new life into his well-loved pop tracks...

A quirky mashup of Bieber's 'Baby' with the Supremes' timeless Motown standard 'Where Did Our Love Go,' YouTube star Julia Nunes offers a refreshing take on both tracks that gives us a major appreciation for each song. The perky blonde multi-instrumentalist pulls out pretty much every trick in the book (ukelele...

Lindsey Lee may not be quite as well-known as some of the YouTube superstars in the game, but her voice puts her squarely in the big leagues — which is probably how she earned a plush spot as a back-up singer for Miley Cyrus. The power of her voice on those notes in the chorus is truly awe inspiring...

While the "girl with guitar on YouTube" market is pretty well-saturated, everything about Drew Tabor's delivery stands out, from the weathered, gorgeous maturity of her vocals to the surprising harmonies that flood the track during the chorus...

Stunning chanteuse Tiffany Alvord has quite a fan following due to her gorgeous covers of Selena Gomez and OneRepublic (her interpretation of Katy Perry's 'The One That Got Away' is a particular home run), but her luminous piano version of Bieber's 'Pray' is one of her finest covers...

It would be blasphemy to say that young crooner Ryan Beatty out-Biebers The Biebs himself, but given that Bieber himself started off his career on YouTube, the comparisons come naturally. Fresh-faced tween Beatty's earnest and heartfelt take on 'U Smile' puts the spotlight right where it belongs: On Beatty's crystalline vocals, which are as clear and sweet as Bieber himself...

Amidst the many covers of 'Baby' floating around on YouTube, Kina Grannis' version is one of the loveliest — but then, it's no surprise, since the California-born talent was crowned 2011's Best Web Born Artist by the MTV O Music Awards. Her dusky vocals compliment the simple arrangement gorgeously, allowing the song's melody to shine...

It's a family affair with six-piece singing group Cimorelli, who have gone viral countless times with their lovely harmonies and fresh, clean production style, and it's easy to fall in love with their rendition of Bieber's 'Pray.' The simple a cappella delivery serves the song marvelously, and the girls are just so darn likable, it easily earns its place here...

Just because it's no longer the holiday season doesn't mean that we can't show some love to YouTube sensation Megan Nicole, who has become one of the top stars to emerge from the YouTube age. Her clip for 'Mistletoe' shows her jamming out by a Christmas tree with some cute accoutrements (Hello Kitty slippers, anyone...

Talk about a voice! Gabe Bondoc is already YouTube famous for his covers of Taylor Swift, Adele, and Chris Brown, but we're especially partial to his guitar-driven rendition of Bieber's 'Somebody to Love.' The chorus melody allows Bondoc to show off his pitch-perfect vocal stylings...