Yep, as the title suggest.
After the spin-off Railgun gave the opening theme song’s spot away to fripSide, our Mami Kawada takes it back on the second season of To aru majutsu no Index. According to HMV Japan, it will be entitled No buts! and released as single on November 3rd, 2010. No other details provided.
Next update comes from KOTOKO‘s Loop-the-Loop single. The coupling track title is now revealed by Amazon Japan. It is entitled 雷鳴が鳴く頃 (Raimei ga naku koro). A tribute to Eiko’s Higurashi no naku koro ni ?? *lol*