Two boys walking trough wood.then one of them saw rubic cube he took it and then some fairies put him into it.The other boy comes and he took that rubic cube.he continued walking till he didn't saw some building.He put rubic cube,with the boy inside,into that capsule and he trew the capsule into the building.
If someone knows please help me:) I need that song :)

Viva Forever by the Spice Girls?Here's a snippet that matches your description:
'...the fairies play with him, give him a kiss on the nose, whisper a secret, and other similar things. Then they fly him to another place in front of a huge Rubik's Cube. The fairies dance on the cube, to the song, until the middle on the top opens. The boy, assisted by the fairies, climbs inside...'
Spice Girls - Viva Forever - YouTube (http://www.youtube.com/watch?v=b3jVYCGTe5I)