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30 July 2013, 12:38
The 'Boyfriend' star was seen showing off his best mic skills in the rapper's home city.
Justin Bieber was seen performing a cover of Eminem's hit single 'Lose Yourself' during his 'Believe' tour show in Detroit this week.
The 'As Long As You Love Me' star gave fans a taste of his rapping skills as he sent fans inside the Joe Louis Arena wild with the performance.
The tour will continue tonight (30th July) with the first of two nights in Newark.
Eminem is currently busy in the studio working on his new album and will be over in the UK for the Reading And Leeds Festivals 2013.
Watch Justin Bieber rapping Eminem's 'Lose Yourself' during his gig in Detriot below:
Meanwhile, the teen titan's recent public behaviour has been defended by his grandmother.
She believes the paparazzi are simply picking on her grandson and most teenage boys his age would be doing similar things.