Haters gonna sue!

Just days after filing a countersuit against a DJ who allegedly groped her before a June 2013 concert, Taylor Swift is knee-deep in legal issues once again. The 25-year-old singer is being sued for $42 million for allegedly stealing the lyrics to her 2014 single, "Shake It Off."

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R&B singer Jesse Graham claims Taylor stole the lyrics from his 2013 song "Haters Gone Hate" and wants his name added to her track as a writer. He alleges that he has ownership of the phrases "haters gone hate" and "playas gone play."

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The lyrics of Shake It Off include, "Cause the players gonna play, play, play, play, play/And the haters gonna hate, hate, hate, hate, hate," while another goes, "And the fakers gonna fake, fake, fake, fake, fake."

Meanwhile, Jesse's lyrics consist of, "Haters gone hater, playas gone play/Watch out for them fakers, they'll fake you everyday."

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"Her hook is the same hook as mine. If I didn't write the song 'Haters Gone Hate,' there wouldn't be a song called 'Shake It Off,'" he told the Daily News.

He's reportedly contacted Big Machine Records (Taylor's label) four or five times with no answer, and Taylor's reps keep dismissing him. But Jesse says he's not backing down.

"At first I was going to let it go, but this song is my song all the way," he added.