Brad Pitt surprised his longtime makeup artist and friend with an HGTV home renovation

• Brad Pitt recently made his HGTV debut, teaming up with the Property Brothers, Drew and Jonathan Scott, on "Celebrity IOU."
• The trio transformed makeup artist Jean Black's garage into a tiny guest house and workspace.
• "I don't even have the words to describe the value she's been to me and my life," Pitt said of Black, his friend of almost 30 years.
• You can watch the next episode of "Celebrity IOU," which will feature Melissa McCarthy, on April 20.
• Visit Insider's homepage for more stories.

HGTV stars are celebrities in their own right, with people like Joanna and Chip Gaines or Drew and Jonathan Scott becoming household names in recent years as a result of their renovation and design skills.

But HGTV is upping its celebrity status even more with its new show, "Celebrity IOU."

"Celebrity IOU" provides Hollywood's biggest names an opportunity to give back to people in their lives

Drew and Jonathan Scott of "Property Brothers" star in the new series, in which they team up with different celebrities.

In each episode, the brothers and a guest celebrity renovate the home of someone who has made a difference in that star's life.

The first season is set to feature an array of award-winning stars, including Melissa McCarthy, Viola Davis, and Michael Bublé.

Each renovation is a surprise, and it gives the celebrity a chance to give back to those around them.

The series airs on Mondays on HGTV, and it premiered on April 13 with one of Hollywood's biggest stars at its crux: Brad Pitt.

Brad Pitt starred in the show's premiere, teaming up with the Scott brothers to turn makeup artist Jean Black's garage into a guest house

Pitt and Black have known one another for almost 30 years, and Pitt noted in the episode that they've worked on around 40 films together.

"She's family," Pitt said of Black. "We're like brother and sister."

"I don't even have the words to describe the value she's been to me and my life," he added.

Pitt collaborated with the Scott brothers to transform Black's garage in the Santa Monica Flats, which had previously been used for storage, into a guest house and workspace.

He told the Property Brothers he had wanted to help her remodel the space for ten years, but he didn't have the resources until this opportunity came about.

The trio only had three weeks to pull off the transformation

The renovation took place while Black was away working on a film, so Pitt and the brothers only had a short window of time to finish the project before she returned.

The Scotts brought renovation and design expertise from "Property Brothers" to the show, but Pitt helped with the demolition.

He was also integral in picking the flooring and tiles used in the space since he knew what would work with the design of Black's main house.

"Brad has so much love for Jean. You can just feel it," the brothers said of Pitt during the episode.

But Pitt also had to leave for work during much of the renovation, leaving it up to the Scotts to really put the dream space together for Black.

Black was totally surprised by the renovation

The Scotts did all Pitt asked of in the renovation and more, including a custom makeup station, a kitchenette, a Murphy bed for additional space, and a walk-in closet to store Black's supplies.

They even added a photo of her parents to the closet, who Black lost when she was young, to make the space feel more like home.

"Everybody says you are just such a giving, kind person, and it was exciting for them to see something really nice happen for you," they said to Black in the episode.

Both Pitt and Black got emotional during the reveal, reflecting on their friendship and what they've been through in the nearly 30 years they've known one another.

"I know Brad's generosity, and it's huge," Black said of Pitt. "But for him to do this, it's more than I ever thought could happen, honestly."

"I'm very, very lucky in my life to have someone who has cared about me and trusted me," she added.

"I don't think you can ask much more of someone."

You can see more photos of Black's renovation, and Pitt, here.

The next episode of the series will air on April 20, and it will feature Melissa McCarthy

In the episode, McCarthy is on a mission to renovate her aunt and uncle's home, as stated in an HGTV press release provided to Insider.

Both McCarthy's aunt and uncle are retired police officers, and McCarthy wanted to help them since they have served others their whole lives.

"My Uncle Jim was hurt on the job, and there are just some things that make it difficult for him to get around," she's quoted as saying in the same press release.

"They need this renovation, and I couldn't think of anyone else that deserves it more."

You can learn more about the show here.

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