Michael Jackson's Smooth Skin Didn't Come Cheap

Dermatologist Arnold Klein sues estate for $48,522.89 in unpaid bills for gobs of Botox and other line-filling treatments

Yikes! Michael Jackson's body may have had no trouble groovin' to the beat during his final months, but it's a wonder he could move his face.

The King of Pop's longtime dermatologist and recent search-warrant target Dr. Arnold Klein has sued Jackson's estate for more than $48,500 in unpaid bills for various treatments performed between March and June of this year, the last four (including a Restylane injection) coming just three days before Jackson's death.

We're talking hundreds of items, most of them common artificial age-correctors, according to the invoices included with the lawsuit filed Wednesday in Los Angeles Superior Court.

From Botox under the eyes to fine line injections to Latanoprost (used to treat glaucoma or high pressure in the eye), Klein was injecting Jackson right and left with something or other for between $40 and $600 a pop.

The lawsuit comes not long after a judge gave Jackson estate administrators John Branca and John McClain the authority to deal more directly with creditors and others looking to make financial deals with the estate.

Klein's Beverly Hills office has been searched a couple of times by authorities looking for more information about Jackson's medical history leading up to his death on June 25.