BEAUMONT, Texas — Rodney Reed is set to be executed by the state of Texas on November 20. But a chorus of celebrities are fighting for Gov. Greg Abbott to spare Reed's life. 

The latest celebrity to use their clout -- pop superstar Rihanna. 

She tweeted a link to the "Free Rodney Reed" petition asking Gov. Abbott to stopped the planned execution. More than half-a-million signatures have been added to the growing petition.

In October, Kim Kardashian West, who has been an advocate for criminal justice reform, tweeted her 62 million followers about Reed's case. She also urged Gov. Abbott to stay the execution.

Since then, other celebrities from talk show host Dr. Phil McGraw to Susan Sarandon, have used their star power to pressure the governor. 

Even the European Union has joined the call to stop the execution -- tweeting Gov. Abbott a letter on Friday asking for clemency. 

"Evidence in Mr. Reed's case casts substantial doubt as to his culpability. Moreover, Mr. Reed is seeking DNA testing of evidence that has not been previously tested," the letter said. "Under these circumstances, we believe the state should not proceed with the execution without allowing for those tests."

Reed has spent the past 21 years on death row. He was convicted in the 1996 rape and murder of Stacey Stites in Bastrop, Texas. 

The Innocence Project and Reed's attorneys have filed an application for clemency with the Texas Board of Pardons and Paroles. 

Reed's legal team is citing contradicting confessions and evidence which implicates Stites's fiance, Jimmy Fennell, for the murder.

Last week, a former inmate submitted a sworn affidavit on behalf of Reed, claiming the fiance of States confessed to killing her.

Snow is the fourth person to come forward in recent weeks.

For more in-depth coverage, subscribe to our sister station KVUE's 'Texas Crime Files' podcast on Reed's case. New episodes will be released every Wednesday until Nov. 20.

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