Swedish advertising agency Volontaire has challenged three interns to The Impossible Pitch II (a sequel to the original Impossible Pitch in March this year, when three interns had to pitch and win the Adidas account in three weeks, using social media).

And this time, someone who helps them could win a place on a bus to a town in Nigeria, riding with a legendary Estonian rock band.

On behalf of Volontaire’s client Brämhults, a Swedish juice company, the interns have to get Estonian pop group Apelsin (35 years old this year) to agree to take a bus to the Nigerian city of Jos, meet the mayor and play a concert. But as the challenge starts, Apelsin supposedly knows nothing about it.

The logic behind the challenge is that Apelsin, in Estonian, means orange, while Jos is Swedish for juice. It’s supposed to be an entertaining way to bring Brämhults’ core business to life – orange to juice.

In late November, the interns will be going to Tallinn to try and persuade Apelsin to get on a bus and drive through Europe, over the Gibraltar Straits to Western Africa then to Jos.

Before that meeting, the interns have two weeks to get as many people as possible to sign an online petition, via a social media campaign on Facebook, YouTube, Twitter and their own daily blog of ideas, videos and suggestions from supporters, at www.apelsintojos.com.

Volontaire says that the more people that sign up as fans on Facebook, the bigger the chance that Apelsin will agree.

And one lucky Facebook fan will get a seat on the bus to Nigeria with the band. The rest will follow the road trip as a mini series.