The ending of the Wolf's Rain anime is called Gravity and is performed in English by Maaya Sakamoto. Lyrics by: Troy and words arrangement by: Yoko Kanno.
Been a long road to follow
been there and gone tomorrow
without saying goodbye to yesterday
are the memories I hold still valid?
or have the tears deluded them?
maybe this time tomorrow
the rain will cease to follow
and the mist will fade into one more today~
something somewhere out there keeps calling
am I going home
will I hear someone singing solace to the silent moon?
zero gravity what's it like?
(am I all alone?)
is somebody there beyond these heavy aching feet
still the road keeps on telling me to go on
something is pulling me
I feel the gravity of it all~
Link: http://www.youtube.com/watch?v=oalaO2o5YF8 Owner: boredxwithxit