Olivia Wilde and Jason Sudeikis's 1-year-old son Otis is definitely a mama's boy!
The 31-year-old posted an incredibly cute photo of her child playing with his new hat – which just happens to be mommy's bra! The actress shared the precious moment on Instagram captioning the pic, "Hey, bra."
Too cute! Click through the gallery to see more celebrity kids at their cutest.