Justin Timberlake to play Bruce's son?

Pop star Justin Timberlake is being groomed to play Bruce Willis' son in Die Hard 4.0.

Willis was so impressed with the Cry Me A River hunk's acting skills in new movie Alpha Dog, he's trying to persuade Timberlake to sign up for his action movie's fourth installment.

Movie gossip website Moviehole.net reports: "John JR, John McClane's son, was featured in the original Die Hard. In the next film, he'll be older - and, with his sister Lucy, he gets entangled in dad's latest adventure. "