The "Alejandro" singer, 24, has become the first living person to nab 10 million Facebook fans.
On Friday, she surpassed President Barack Obama to take the honor.
According to USA Today, only five entities, none of them living people, have more Facebook fans than Gaga: Michael Jackson, Texas Hold 'em Poker, the "Family Guy" TV show, the game "Mafia Wars" and Facebook itself.
Gaga (real name: Stefani Joanne Angelina Germanotta) has long thanked her fans for keeping her in the spotlight.
In the latest of Rolling Stone, she confessed: "When I wake up in the morning, I feel just like any other insecure 24-year-old girl. Then I say, '... you're Lady Gaga, you get up and walk the walk today.' "