This first one is called Lolita Strawberry in Summer sung by a group called SweetS. And its an Ed/Winry video.
http://s53.yousendit.com/d.aspx?id=2W25XGZK5LWRB3AI0IQJ5UDX7Z
The next one is called July 1st by Ayumi Hamasaki.
http://s40.yousendit.com/d.aspx?id=1C5SOXR4ZMN7W1D1WKNPL0UUZW
And this last one is also by Ayumi called Above and Beyond(Remix)
http://s52.yousendit.com/d.aspx?id=3TSX62GUOAKHP2CVJO2KAZCZDT
I hope you all enjoy. ^_^
Oh i almost forgot There are SPOILERS if you haven't seen past what is shown on Adult Swim.