It’s sort of interesting that I can find myself totally ignorant of an online game with 300 million users. Think about that. 300 million people play Redbana’s Audition Online — a virtual dancing game.

And it’s not just something that makes you jiggle to random no-name techno, either. Ke$ha and Lady Gaga are among the artists whose songs people groove to.

Now, they’re celebrating their one-year anniversary.

Yun Tae, Project Manager for Audition, said, in a statement, “With the successful anniversary of Audition, we are getting closer to our goal of establishing Redbana US as a premier provider of online games.”

Happy anniversary, guys.

For more info, head here.