Meet Robert Downey Jr.'s Baby Girl!

Robert Downey Jr. shared the first photo of his 5-month-old daughter, Avri, when he stopped by Late Show With David Letterman on Thursday. The Avengers: Age of Ultron star told Dave, "I thought I'd show the first picture on planet earth here with you, kind sir." After the audience collectively sighed over little Avri's adorable face, Robert joked, "The yellow bonnet helps! You gotta love a yellow bonnet." Robert is also father to sons Indio, 21, and Exton, 3. Watch the cute clip above, and then check out Robert's tweets to a little boy having a bad day that will make your heart melt.