For 'We Are The Champions'

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Donald Trump's triumphant entrance at the RNC to Queen's anthem was never approved by Queen ... TMZ has learned.

Trump walked onstage to "We are The Champions," but a rep for Sony Music ATV -- which owns publishing rights on the song -- tells us the Trump campaign never asked nor were they given permission to use the song.

Trump also used 'Champions' last month, and Queen's Brian May came out firing, saying he would never give permission to use the song because the band never wanted it used for politics.

Queen just released a statement, calling Trump's move, "An unauthorized use at the Republican Convention against our wishes."