Robert Downey Jr. showed off the first photo of his 5-month-old little girl during an appearance on "The Late Show" with David Letterman on Thursday night -- and boy is she a cutie.
The "Avengers: Age Of Ultron" star opened up to the veteran talk-show host about all his three children, including his latest edition.
"I have three a 21-year-old, Indio, a 3-year-old, Exton and now Avri, who's a little over five months. I thought I'd show the first picture on planet earth here with you, kind sir," he said, before debuting an adorable pic.
In the photo, the tiny tot dons a yellow bonnet while starring into the camera with big blue eyes.
So, how is toddler Exton handling life with a new baby sister -- has the sibling rivalry already started?
"Not yet. I mean, it's natural for Exton to want to bite her once in a while," he joked. "And it can start off as a little pet and then it turns into a little nibble. I think it's just establishing dominance. She'll be running stuff at some point."
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