Rat–A–Tat - 3D English Nursery Rhyme for Kids Rat–tat–tat, Who can it be? Lets go and see. Who can it be? Here is a postman. Knocking at the door. Have you .\rbr\rbrPebbles present, Rat A Tat 3D Nursery Rhymes with Lyrics For Kids. Nursery Poems in 3D Animation. Pebbles offers the following Rhymes Collection for .\rbr\rbrCheck out the Lyrics of this Nursery Rhyme : Rat--tat--tat, Rat--tat--tat, Who can it be? Lets go and see. Who can it be? Here is a postman. Knocking at the door.\rbr\rbrCreador Rat rhymes | Alphabet Song 3d nursery rhymes for kids with little sachin | R for rat song. Popular English Rhymes Playlist : Baa .