Lady Gaga has become the first person on Twitter to hit a whopping 10 million followers. She also is the first current artist to get one billion views on YouTube.

The music artist broke the record for the most followers on Saturday. - 10MillionMonsters! I’m speechless, we did it! Its an illness how I love you. Leaving London smiling.Sun May 15 03:59:11 via Twitter for BlackBerry®Lady Gaga

Behind Gaga in followers is tween pop sensation Justin Bieber, who has 9.6 million followers, according to MediaBistro.

Bieber may be catching up, though, the media site reported. He’s gathering followers at a faster rate than Lady Gaga, and may overtake her by the end of the year.

Are you a Little Monster or a Belieber? Which celebrities do you follow on Twitter?

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