We've been waiting 10 long years for Fergie's second solo album, but the star is insisting on keeping our appetites starved right up until the final minute.

That's right, the Black Eyed Peas singer has unveiled yet another teaser of her new song 'Hungry', but this time on Instagram.

The super stylish black and white clip hears her declare "sick, hungry, starving" over operatic vocals and trap beats, before adding "not thirsty, just hungry, ambitious".

The collection - titled Double Dutchess - was believed to be on its way earlier this month when Fergie's husband Josh Duhamel let slip it was imminent.

Of course, it inevitably didn't arrive, and the star's latest teaser clip gives us now a clearer idea of when we'll get it.

Fergie has already been performing new tracks live during her festival sets across the world, including 'You Already Know', which sounds like it features Nicki Minaj.

The singer has been working on Double Dutchess for well over a year now, and teased new music with a striking black and white visual last month.

It also means that the Peas have had to find a temporary replacement for their upcoming shows.

Will.i.am has reportedly signed up The Voice's Lydia Lucy to replace Fergie for a handful of shows later this year.