Which über famous Hollywood actor and actress regularly get together in secret?

Not to make sweet love, but to indulge in a 24 hour pills 'n' coke bender? Although both of these people look as though they take themselves far far too seriously in the acting world, in private they liek nothing more than getting completely ripped to the t*ts. The woman goes even further and holds regular coke parties at her house. The last one saw her throwing out 20 guests at 11am - she thoughtfully handed each of them a sleeping pill as they left.