SEAN PENN would never make it as a rock star - his party song fell flat when he tried to entertain pals in an LA hotel.

The fun-lovers winced at the actor's caterwauling, but no-one had the guts to ask him to stop. It took security guards to end the agony - they had received complaints from other guests in the hotel, who thought they heard someone crying for help. (CB/WNSMI/NFA)

Source: WENN