Hip-hop superproducer Timbaland almost missed out on the chance to work with his longtime collaborator Jay Z on his new album after the old pals fell out.

The Way I Are beatmaker features in new Tv advertisements for Magna Carta Holy Grail, with the commercials depicting him in the studio with Jay Z, Rick Rubin, Swizz Beatz and Pharrell Williams as they discuss their ideas and tracks for the project.

However, Timbaland reveals Jay Z almost didn't invite him to take part in the hitmaking process due to a personal slight following their last collaboration on The Blueprint 3 in 2009.

The producer refuses to go into detail about the issue, but suggests all was resolved between the two friends after he apologised.

During an interview on rap mogul Sean 'Diddy' Combs' new RevoltTv network, he says, "Jay and I fell out; I missed his 40th (birthday)... It was over petty stuff. It was more personal stuff and disagreements. It was not industry-related. It was personal and I was wrong...

"It (the fall-out) was low key, nobody know about this (sic)... But when you're real friends, you will disagree and not speak and come back together and realise that you're better together than apart."