Naomi Campbell to Testify at War Crimes Tribunal

Supermodel agrees to appear at the war crimes trial of former Liberian president Charles Taylor

Naomi Campbell will be going to court.

After months of avoiding comment about former Liberian president Charles Taylor's war crimes trial, the supermodel, who was subpoenaed to appear before the tribunal, has agreed to testify.

Taylor allegedly supported rebels in Sierra Leone's brutal civil war in exchange for "blood diamonds," a charge he has denied.

How does this involve the supermodel? Read on...

Two words: Mia Farrow.

Campbell's involvement in the case apparently came after Farrow found a picture of the supermodel posing with Taylor at Nelson Mandela's house in 1997, prompting prosecutors to question if she was a recipient of a "blood diamond."

After finding the picture in an old photo album, Farrow told ABC News that Campbell said Taylor's reps had given her a "huge" uncut diamond that evening.

"You don't forget when a girlfriend tells you she was given a huge diamond in the middle of the night," Farrow told ABC News.

In a court testimony, the former president denied ever giving a diamond to Campbell or owning a large quantity of diamonds himself.

As for Campbell, she denied it also.

When ABC News asked Campbell for a comment about the trial, Campbell told the outlet she did not receive a diamond from him and wouldn't comment any further.

Until now, that is. The Outside Organization, which reps Campbell, announced Friday that she is set to testify July 29.