Eve said:
No need to be that upset - I fixed it in my first quote of the text.
Anyway it's now morning in my time zone so I'm awake enough to try translating it ...
みなさんおひさしぶりです。
Hi everyone, it's been a while.
最近は「約束の日」のイベントで 全国各地の教会や結婚式場でライブを行なっています。
Recently for the "Promise Day"* events (we've) been performing live at churches and wedding halls all across the country.
もうすぐ約束の日を迎えるカップルを 招待し恋愛3部作を歌うという内容なんですが、
What we perform is the "Love third division" piece** for couples we invite who are about to meet the "Promise Day" but
やっぱり来ていた方は皆さん幸せそうで、 なんだかこっちが恥ずかしくなりましたが、 私も少し幸せを分けてもらえた気がしました。
as expected everybody from those who come seem very happy, somehow it makes us a become embarrassed

but I also get the feeling that some of their happyness rubbed off on us.
今でも明日への扉を結婚式でかけました と言う内容のファンレターを頂く事があります、
Even now we get fan letters from fans about how wedding ceremony's formed the door to the tomorrow they rushed through***,
これからもみなさんの人生の大事な思い出に関わる事が できるような曲を 作っていきたいと思います。
I think that from now on as well we will create pieces made up in connection with the important memories / feelings of everybody's life.
最後に本当に会場に来ていただいてた皆さんには 幸せになってもらいたいと思います、 みなさんの隣にいる方と約束の日を迎えられますように ・・・
Finally we hope everybody who turned up the events has ever happiness and wish everybody goes on to meet "Promise Day" with the person then by their side.
あと、 私たちの新曲が8/18に 発売されることになりました!
Oh yes, it's been decided that our new piece will be on sale from August 18th!
「キミと僕」というタイトルの曲です。
It's a song with the title "You and me".****
是非聴いてみてくださいね
Please have a listen to it, OK?
* (or Appointed day) Not sure if this is a specific thing in Japan ...
Maybe it's the traditional day to announce engagements of something.
** I presume this is a) On of their songs and b) Badly translated

*** I hope that didn't sound as lame in the original Japanese

Maybe I've mistranslated a tad

**** I'm sure Glenn will correct me if that's supposed to be "You and I"
