Oops, he did it again!

Trash-talking rapper Kanye West has pulled another Taylor Swift-style beat-down, but this time he has Britney Spears in the crosshairs!

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The songstress’ Hold It Against Me has so far topped the download charts in 19 countries, relegating Kanye’s H.A.M. (featuring Jay-Z) to second position on iTunes.

"Yo Britney, I'm really happy for you and I'mma let you be #1, but me and Jay-Z's single is one of the best songs of all time! LOL,” Kanye, 33, wrote to the Circus star, 29, on Twitter.