Confirmed by his official website now! No details yet.
http://www.sonymusic.co.jp/Music/Arch/DF/KenHirai/m_info.html
More info about the song in this thread.
EDIT:
New Profile Photo
CD
CD DVD
僕は君に恋をする [ LISTEN ]
一人じゃない [ LISTEN ]
DVD tracklist
credits: jpm
http://www.sonymusic.co.jp/Music/Arch/DF/KenHirai/m_info.html
More info about the song in this thread.
EDIT:
New Profile Photo
CD
CD DVD
僕は君に恋をする [ LISTEN ]
一人じゃない [ LISTEN ]
DVD tracklist
1. 僕がどんなに君を好きか、君は知らない
2. ハートオブマイン
3. いつか離れる日が来ても
4. イーブンイフ
credits: jpm