Justin Bieber has taken a swipe at Eminem, claiming the musician ‘doesn’t understand the new generation of rap.’

The Sorry hitmaker squared up to the Stan rapper on his Instagram story after posting a screenshot showing he was listening to Eminem’s The Ringer from his latest album Kamikaze.

The album, which hit the number spots on the UK and US Billboard charts, features several diss tracks aimed at artists including Machine Gun Kelly, Joe Budden, Lil Yachty, Lil Xan and Lil Pump.

Not Sorry? Justin Bieber has taken a swipe at Eminem, claiming the musician ‘doesn’t understand the new generation of rap’ (pictured October 2018)

Hinting that Eminem is behind the times, Justin defended the artists, writing: ‘I just like Em’s flow but don’t like that he’s dissing new rappers.

‘I like the new generation of rap, he just doesn’t understand it .’

Although the post may ignite fractious relations between the pair, it appears they have been friendly in the past.

What Do You Mean: Justin wrote:  ‘I like the new generation of rap, he just doesn’t understand it’

Happier times: In 2017, Where Are U Now singer Justin posted a throwback snap from 2009 of him meeting the iconic rapper at the start of his teen pop career

In 2017, Where Are U Now singer Justin posted a throwback snap from 2009 of him meeting the iconic rapper at the start of his teen pop career.

Justin also covered the rapper’s 2002 hit Lose Yourself, during a concert in London back in 2015.

Love Yourself singer Justin has ventured into rapping in the past, most memorably on 2012 hit song, Boyfriend where he uttered the lines ‘swag, swag, swag, on you, sitting by the fire while we eatin’ fondue.’

Eminem and Machine Gun Kelly famously got into a war of words when the Monster rapper slammed him in Killshot.

The Wild Boy hitmaker took to Twitter to poke fun at the hit as he claimed his rival only responded to his track Rap Devil ‘2 weeks and 3 interviews later.’