fripside has revealed on their website, after a countdown, that they will be singing the theme song to the Hayate no Gotoku: Heaven is a Place on Earth movie. While the title of the song is still to be announced, the single including the song (GNCA-0187) has been solicited for release on August 24th, 3 days before the Hayate no Gotoku movie opening on the 27th. This will be their 4th single.
They have also announced that the OAD included in volume 43 of the Ah! My Goddess! manga will again use "everlasting" as the theme song. "everlasting" was first used in the OAD included in volume 42 and was released on their first album infinite synthesis. For those who haven't heard the term before, an OAD is a DVD, released with a manga, that includes previously unpublished episodes.
fripside is probably best known for singing the To Aru Kagaku no Railgun opening songs including "only my railgun."
Image ©Kenjiro Hata, Shogakukan / Hayate no Gotoku the Movie Production Committee