To the unexpecting eye, This NCIS Bert Rocks! Hippopotamus Juniors Black T-shirt might not make any sense to someone if they aren't familiar with the show. Only a real fan of NCIS will get the reference here as it pertains to the show, but that's okay. our NCIS Bert Rocks! Hippopotamus Juniors Black Tee is offically-licensed and made of the highest quality materials. Available in a juniors/young woman fit but also available in adult size as well.