Matt Bomer couldn’t wait to see Lady Gaga in her first movie starring role in Bradley Cooper’s “A Star Is Born.”

Bomer, who has worked with Gaga on “American Horror Story: Freak Show,” commented on the pop star’s new big screen project at a fundraiser for the onePULSE Foundation at NeueHouse in Los Angeles on Friday, Aug. 19.

“That's fantastic!” Bomer told Entertainment Tonight of Gaga landing the female lead role in Cooper’s directorial debut. “She is gonna slay that!”

“I'm excited,” the 38-year-old actor added. “I'll be there opening night, front row, popcorn ready.”

The “Bad Romance” hitmaker will star opposite Cooper in a movie which, according to The Hollywood Reporter, is based on the 1937 film of the same name starring Janet Gaynor and Fredric March. The film tells the story of a movie star who helps a hopeful young actress find popularity, even as age and alcoholism send his own acting career into a downward spiral.

The romantic drama film directed by William A. Wellman was subsequently remade in 1954 by filmmaker George Cukor, with Judy Garland and James Mason starring, and again in 1976 by rank Pierson, with Barbra Streisand and Kris Kristofferson as the lead stars.

Rumors that Gaga is set to star in the film first surfaced when the songstress was photographed by paparazzi on a motorcycle ride with Cooper. According to The Hollywood Reporter, Gaga tested for Warner Bros., impressing the studio bosses.

Aside from starring in the movie, Gaga will also compose and perform new music for the film, which is being written by Cooper and “The Lucky One” scribe Will Fetters.

The film studio has been working on the remake of the film for years. Cooper's “American Sniper” director Clint Eastwood became attached to helm the project in 2011. Beyoncé was also once set to star, but things held up when she became pregnant and Eastwood moved on to direct the 2014 biographical musical drama film “Jersey Boys.”

After things didn’t work out with Beyoncé, Deadline revealed in June that Gaga was the one Cooper wanted to play the female lead role.

Production will begin early next year in California.

As for Bomer, he will be next seen in the western action film “The Magnificent Seven,” which opens in theaters on Sept. 23.

Lady Gaga Matt Bomer said that his “American Horror Story: Freak Show” co-star Lady Gaga is going to “slay” her first film starring role in Bradley Cooper’s “A Star Is Born.” Pictured: Gaga attends the 'Manus x Machina: Fashion In An Age Of Technology' Costume Institute Gala at Metropolitan Museum of Art on May 2, 2016 in New York City. Photo: Getty Images/Neilson Barnard