Jay Z has a well connected act on his label's roster - the music mogul has signed up Stephen Spielberg's kids.

Sasha and Theo Spielberg have been making waves with their act Wardell, and are already a hit on the Hollywood social scene after performing at Teen Vogue's Young Hollywood Party last month (Sep13).

Their talents have also caught the attention of another industry player - the 99 Problems hitmaker has signed them to his Roc Nation label.

The company is already home to artists including Rihanna, Rita Ora, Kylie Minogue, Shakira and Haim, who beat Justin Timberlake to the top of the U.K. album chart over the weekend (05-06Oct13).