LOS ANGELES, Jan 27, (Agencies): Britney Spears enthusiasts have united to propel the Princess of Pop's 13-year-old track, "Selfish," up the charts in response to her ex, Justin Timberlake, releasing a new song with the same title.

Timberlake unveiled his comeback single, "Selfish," on Thursday, prompting Spears' devoted fan base to take action and boost her 2011 song from the deluxe version of her album, Femme Fatale.

The mastermind behind the Britney stan account, BritneyxYtube, humorously claimed credit for the strategic move, explaining that it "started as a joke" when Timberlake announced the title of his latest single. Fans playfully speculated about Spears making a grand return with a "brand-new song." This playful campaign swiftly gained momentum, pushing the vintage "Selfish" song into the top 40 of the US iTunes chart, with aspirations to reach the top 10.

Expressing delight over the unexpected success, the individual behind BritneyxYtube shared, "I still can't believe that it became so big, and we see the results we see now. We are all so happy to see her song making a comeback after all these years!!!"