[New post Jan-15th with “Serment” release details]
As with the first two seasons of anime Shakugan no Shana, singer Mami Kawada will provide an opening theme song for this third season, Shakugan no Shana III (final).
Mami Kawada tweeted on December 4th that she is performing the new opening theme song “Serment” for the Shakugan no Shana III. She further stated that the single will be released on February 1, 2012. Kawada has now performed songs for all three season, OVA, and movie in the Shakugan no Shana anime projects.
Shakugan no Shana III (final) premiered on October 7th and the first opening theme for this 3rd season, “Light My Fire” was composed/arranged by ryo (supercell) and sung by KOTOKO. Streaming of the series is available outside of Japan on Niconico.com.
Source: Anime News Network