Trick or treat! Check out some of the cutest costumes celebrities' kids have dressed up as from over the years -- including Jimmy Fallon's baby chicken, Beyonce's beautiful bumblebee, and Katherine Heigl's little peacocks
Madonna's son Rocco Ritchie posed with Swizz Beatz, and his sons Egypt and Kasseem Dean Jr. at the Kasseem's Dream Halloween Party in Brooklyn, N.Y., on Oct. 29. Kasseem and Egypt wore decorative costumes along with Kiyan Anthony, Carmelo Anthony's son. DJ Fulano Librizzi threw up a peace sign while posing with the famous families.