Steve Martin and Martin Short could do a full podcast about their love for Selena Gomez .

The relationship between the Only Murders in the Building costars has been one for the ages, and as Steve gushed, it’s been an honor watching how Selena has grown during the show’s run.

“She went from 28 to 33,” he told E! News correspondent Will Marfuggi in an exclusive interview airing Sept. 2, “and so much has happened in her life.”

The 80-year-old added that he’s delighted to be an “insider” who gets to spend time behind the scenes with the “Love On” singer—who got engaged to Benny Blanco in December— and experience “life off camera” with her.

“We know her and we read about her,” Steve added. “So we have to put it all together.”

But Ste

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