Coleen Rooney's son Cass, 8, makes his modelling debut as he joins her new Primark campaign

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Coleen Rooney's son Cass has made his modelling debut at the age of eight as he joined his glamorous mother in her new Primark campaign.

The WAG, 40, shared her delight, calling the photoshoot with her youngest child a 'special moment'.

Coleen and her football pundit husband, Wayne, 40, are parents to three other children, sons Kai, 16; Klay, 12, and Kit, 10.

It marks her second By Coleen collection since signing a multi-million pound deal with the high-street retailer earlier this year.

Coleen looked incredible in a checked jacket, before slipping into a black leather-look bomber jacket in a second shot.

Cass sported a pale green jumper and off-white jogging bottoms as he posed in his first ever professional photoshoot. 

Coleen said proudly: 'As a mum to four children, I wanted the collection to feel stylish yet practical, and working with a brand like Primark that so many of my followers shop with was really important to me.

'My friends all loved the first By Coleen collection, so I can't wait for them to see the next one.

'My family are very proud of me with this collaboration, and having Cass as part of the kids wear photoshoot was such a special moment.

'I'm over the moon for how it's all turned out and I absolutely loved seeing everyone tagging me in their posts with the last collection, so am hoping it's much the same this time round!'

By Coleen will be available in Primark stores from July 28, with womenswear priced at £2.50 to £30; the kidswear launches in August, with prices starting at £7. 

In Great Britain, customers will also be able to shop the full collection via Click & Collect.   

Now that the photoshoot is done and the school holiday's are full swing, Cass has wasted no time in getting a new haircut for the summer.

Shaving his whole head, aside from a small semi-circle at the front, Cass looks to have taken direct inspiration from the Brazilian player Ronaldo.

The legendary footballer, who is widely regarded as one of the greatest players of all time, is famous for the iconic haircut he had during the 2002 World Cup.

Posing in his Brazil football shirt, Coleen penned: 'Summer holidays... Hair style fun!!!' 

She later took to her Instagram Story to share the news that Cass and his team had also won their summer league as he posed holding the silver trophy. 

And last month, eldest son Kai showed off his fitness transformation as he shared snaps from his gym session. 

Following the workout, the sportsman, who plays as a forward for Manchester United's youth academy, snapped a selfie for his Instagram stories which showed his image overhaul. 

In March, Kai revealed that, because of an injury, he would be out for the rest of the season having enjoyed an impressive campaign at Old Trafford after making his debut for the U18s in January.

Forced to watch from the sidelines, in a heartbreaking post on Instagram he wrote: 'Disappointed to be out for the rest of the season. Back stronger next pre-season.'

Kai, who is eligible for a professional contract at Manchester United next season, after earning his first scholarship, signed off his post with a love heart emoji.

Earlier in March, the Man United starlet signed with super agent Triple S Sports & Entertainment Group as he took a huge step forwards in his youth career.

Triple S Sports is owned by Paul Stretford, Wayne's long-term football agent who signed the former Everton and United forward when he was 17.

The agency also represents United defender Harry Maguire, Everton's James Garner and Wayne's 22-year-old cousin, Jake Rooney.

They also have a number of highly-rated United academy players on their roster, including 18-year-old forward Shea Lacey and Bendito Mantato.

Earlier this year, the youngster helped United's U16s win the Premier League Shield, with his parents proudly cheering him on in the stands.

Playing at United's training ground at Carrington, the Red Devils youth side carved out a comfortable 2-0 win over Burnley to lift the silverware.

The Rooneys are regulars at their son's games. Earlier this year, Kai played in his first match at Old Trafford in an FA Youth Cup tie, and the couple were flanked by the likes of Man Utd head coach Michael Carrick, whose son, Jacey, is also a top player at the club.