His sister perfectly fused British hip-hop with mainstream pop to become an overnight sensation.

Now Ms Dynamite's younger brother Akala is set to follow suit.

The 22-year-old Camden-born rapper is widely expected to be nominated for best UK newcomer at this year's Mobo Awards.

The Mobo - Music Of Black Origin - shortlist will not be announced until this evening but Akala, real name Kingslee Daley, is a shoo-in.

He has already won fans around with his socially aware yet humourous brand of rock-infused rap, releasing his debut album, It's Not A Rumour, in May.

His songs span everything from the Iraq war to gun culture and he makes frequent references to the problems of growing up in a broken home - his Jamaican father walked out on his Scottish mother when he was a baby and he is one of 11 siblings and half-siblings.

Ms Dynamite was only 20 when she released her debut album A Little Deeper.

Her brother's early career move was into football, however. As a teenager he was on the books of West Ham and Wimbledon but eventually quit because his "heart wasn't in it".

At 18, he opened a restaurant in the party capital of Cyprus, Ayia Napa, before turning to writing and performing, setting up his own label, Illa State Records, with his producer and his sister.

Now he claims his mission is to overturn the "dull" status quo in hip-hop. "I grew up when hip-hop was really energetic, creative, exciting," he said. "Now it's just so boring."

His website rails against today's rap as "for plastic players with false values and arid imaginations, who know the price of bling but the value of nothing". One music source said: "Akala is bound to be up for a Mobo this year, he's attracted so much buzz."

This year the public will, for the first time, help to vote for the nominees in the Best UK Newcomer award.

The Mobos take place at the Royal Albert Hall next month and will be screened live, for the first time, on BBC3. Tickets cost from £25.