Miley Cyrus and Justin Bieber in new Twerk song

JUST when you thought you may have got those images of Clive Palmer doing the twerk out of your head, here comes another reason to rekindle the nightmare.

Miley Cyrus and Justin Bieber apparently have a new song coming out that's all about twerking.

Three days after Cyrus' controversial MTV Video Music Awards performance, a track titled "Twerk" was leaked online overnight.

The song features Cyrus, 20, Bieber 19, and rapper Lil Twist, 20.

US Magazine reports that in the chorus, the former Hannah Montana star sings, "I came up in this party time to twerk."

Back in July, Lil Twist announced the group's collaboration by tweeting the cover art for the single. The image shows Cyrus twerking in a unicorn onesie from her dance video that went viral in March.

The word "twerk" has even been added to the Oxford Dictionaries Online.

"Twerk" has been defined as "a dance to popular music in a sexually provocative manner involving thrusting hip movements and a low, squatting stance."

Meanwhile, the story of would-be PM Clive Palmer twerking has made international news.

"He's a billionaire mining baron with designs on the Australian premiership, and businessman Clive Palmer showed he is willing to do anything to win the young vote - even twerking,'' UK's DailyMail reported.

"While most would-be Prime Ministers try and assert their policies and attempt to emulate the manner of a great world leaders, eccentric Palmer United Party Mr Palmer, 59, looked more like politics' answer to Miley Cyrus during a radio interview, '' the report said.

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