iphone Move over, Justin Bieber -- there's a new musician making waves on YouTube.

While the lowly and unoriginal of iPhone owners are still marveling immaturely at the device's uses as a vibrator or poop analyzer, Applegirl002's been producing a riveting musical performance that would color Lady Gaga impressed. With a lineup of four phones, the Korean girl used the I Am T-Pain Auto-Tune app, BeatMaker looping app, and an analog synthesizer app to play a surprisingly accurate rendition of "Poker Face." Check it out her incredible one-woman talent below:

(Don't worry, Bieber, you still have more underage fans and better hair.)