American Idol meanie Simon Cowell is lashing out at the latest bunch of contestants on the hit television show and is insisting the are devoid of the "personality" needed to become superstars.The Idol Judge claims the wannabe singers battling it out in the show’s seventh series on the Fox network, are not taking enough risks with their comments or song choices. And the outspoken Brit has warned the contestants not to consider imitating their own idols, as they will be booted off the show for not offering original performances. He says, "They are giving very safe answers to questions, making safe song selections. We are not getting a sense of who they are. We have to try to pull it out of them more." "You cannot deliver an uninspired performance at the top of the show. And you can’t be up there imitating another singer."