“Can’t believe I reached 100 million Instagram followers, all thanks to YOU! Get the stories behind my top pics”, she tweeted, posting a link to her website with a breakdown of her top five Instas.
As part of celebrating she has promised to give away 100 LuMee cases.
Selena Gomez, currently the most followed person on Instagram with more than 120million devotees, was first do do so in September of last year.
Ariana Grande, Taylor Swift and Beyonce are also in the club, while Portuguese football star Cristiano Ronaldo is the only non-American, non-female with a membership.