Ryan Reynolds' birthday message to Hugh Jackman got very brutal, very fast

Ain't no feud like a Ryan Reynolds/Hugh Jackman feud.

The two Marvel actors may be friends IRL, but they love nothing more than abusing each other over social media. And that goes double on birthdays.

This year, for Jackman's 51st birthday, Reynolds recorded a special message — but it was clouded by a recent comment Jackman had made about Reynolds while on stage during his tour, "The Man. The Music. The Show."

"Let's see Ryan Reynolds do that," Jackman can be seen joking in the clip below (swipe right), before he tells the audience not to share what he said on social media. "Don't post that, do notpost that. No. I'll have like 3 million tweets from him in the next 10 seconds."

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Well, he didn't get 3 million tweets. But he did get one very angry video.

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"Hello Hugh. I was just, uh, I was just going to wish you happy birthday," says Reynolds, looking genuinely pained. "Then I saw what you said. In a word? Hurtful. Enjoy the show, Hugh Jackman."

SEE ALSO:69 times Ryan Reynolds was hands down the funniest actor on Twitter

What follows is an impassioned rendition of the happy birthday song, which breaks down into a sweary rant at the end.

"AND I'M NOT EVEN ****ING PROFESSIONAL TRAINED JACKMAN YOU PIECE OF ****!" yells Reynolds, holding up some choice fingers to make his point even clearer.

Oh dear.