It's official, folks: Justin Bieber has toppled Lady Gaga in the knock-down drag-out fight for most-viewed YouTube video of all time. The teen singer's saccharin hit 'Baby' has been seen 250.7 million times as of Monday morning, clearly surpassing Gaga's 'Bad Romance' and its 247.6 million streams.

Upon hearing of his conquest, Bieber took to Twitter to thank his legion of fans for watching the video, which co-stars Ludacris, so many frickin' times. He was signed two years ago after posting videos on the popular site."I started on YouTube so the support ... well I just need to say thank u."