Jay-Z has officially announced the signing of Timbaland to his Roc Nation label. Jay-Z took the news on his Life+Times site by posting a picture of two fo them talking in the studio. Timberland has produced Jay-Z’s “Ni**a What, Ni**a Who,”, ‘Lobster & Scrimp’, ‘Big Pimpin,’ ‘Dirt Off Your Shoulder’ and ‘Off That’. Just recently Timberland has also produced Justin Timberlake‘s new single ‘Suit & Tie‘ featuring Jay-Z.