The 23-year-old former Disney star took to Snapchat, to share the good news with her fans.
"Hey guys. I'm officially the number one most followed on Instagram. Thank you!," she said in the video.
Gomez now has 69.1 million followers on Instagram, followed by her best friend, Taylor Swift, who has 69 million followers.
Her ex, Justin Bieber is not too far behind, with 61.3 million Instagram followers.