If you'd like to introduce your pupils to the annual African-American celebration Kwanzaa, from 26 December to 1 January, these articles, an audio sketch and festive music interactive can help you.
This interactive feature from the Smithsonian has examples of celebration songs from different cultures in the U.S.A. and around the world.
Click on number 9 for a simple children's song "Kwanzaa Time" (from A1+). There are also a number of Christmas songs.
There is an A2-level audio sketch with comprehension activities about Kwanzaa in the Banque de ressources anglais cycle 4. To see the resource, register now or log in. Then go to:
Audios > A2 > Rencontres avec d’autres cultures > Saynète > Happy Kwanzaa
This relatively simple guide to Kwanzaa is usable from A2 level.
This article from an Atlanta blogger describes how her family celebrates Kwanzaa. Usable from B1.