I'm looking for information about performance art in the Japanese
American internment camps: not only Western drama, but also kabuki,
ododri, or other traditional Japanese performances.

residents formed a kabuki group 
http://vikingphoenix.com/public/JapanIncorporated/eo9066/murata-1.htm

Photo #317 of Yuki Sminoda doing an immitation of Carmen Miranda's "Mama Yo Quiero"

http://content.lib.utah.edu/cgi-bin/pquery.exe?CISOROOT1=%2FPhoto_Archives&CISOROOT2=%2FPhoto_Arch_Two&CISOROOT3=%2FPhoto_Arch_Three&CISOROOT4=%2FPhoto_Arch_Four&CISOROOT5=%2FPhoto_Arch_Five&CISOROOT5=%2FPhoto_Arch_Six&CISOROOT5=%2FPhoto_Arch_Seven&CISOROOT6=%2FUU_Photo_Arch&CISOOP=all&CISORESTMP=%2Fqbuild%2Fphoto_template1.html&CISOVIEWTMP=%2Fqbuild%2Ftemplate2.html&CISOROWS=2&CISOCOLS=5&CISOFIEL
D1=CISOSEARCHALL&CISOBOX1=japanese%20internment%20&CISOSTART=311

Camp Harmony:
fire-eating exhibition by Hiro Yamaguchi
http://www.lib.washington.edu/exhibits/harmony/Newsletter/1-10.html
twelve-piece orchestra, the Harmonaires
http://www.lib.washington.edu/exhibits/harmony/Newsletter/1-5.html
Beefo Amabe's All-Boy Haba-Haba Revue
http://www.lib.washington.edu/exhibits/harmony/Newsletter/1-6.html
http://www.lib.washington.edu/exhibits/harmony/Newsletter/1-7.html

hill-billy song was rendered :)
'Little Art Theatre' group enacted several skits
http://www.lib.washington.edu/exhibits/harmony/Newsletter/1-11.html
Tule Lake Symphony and The Downbeats (with links to photos)
http://www.colostate.edu/Orgs/TuleLake/Segregation.html

Not uncommon for families to destroy or burn traditional Japanese
items and photographs.
http://www.svcn.com/archives/saratoganews/03.29.00/internment-0013.html

Thank you for asking this question because it was very enlightening to
research.  I hope you find some of this information useful.