50 Cent has hit out at former G-Unit rapper Young Buck's allegations that he has "never seen a royalty check" from his time with the star's record label - insisting he was generously "overpaid" throughout his time with the hip hop group.

50 Cent has axed fellow rapper Young Buck from his G-Unit group, after he spoke out about dissent within the ranks of the 'In da club' star's collective.