Glam pop singer Lady Gaga is on the brink of becoming the first living person to have 10 million fans on a single social networking site, having already overtaken U.S. President Barack Obama on Facebook, a British group that measures online popularity said on Friday. said Lady Gaga is already the most popular living musician online, according to her following on Facebook, Twitter and YouTube.

On Friday, the provocative Bad Romance and Paparazzi singer had more than 9.9 million Facebook fans and 4.7 million Twitter followers.

The 24 year-old performer, who released her first album two years ago, overtook Obama last week. The U.S. president has 9.4 million Facebook fans and 4.4 million Twitter followers.

Any moment, Lady Gaga is set to become the first living person to achieve 10m (million) fans on Facebook or, indeed, on any single social network, said on its website.

But Lady Gaga faces some stiff competition before she achieves total dominance of the social networking world.

The late Michael Jackson has some 14 million Facebook fans, but the winner by a long margin is the online game Texas Hold'em Poker which has more than 20 million., based in southern England, aggregates online popularity worldwide across multiple social media channels.

Lady Gaga made her debut on the Forbes magazine 2010 Celebrity 100 power list for the first time this week, entering in 4th place with estimated earnings over the past 12 months of $62 million.

(Reporting by Jill Serjeant; Editing Bob Tourtellotte)