I thought these songs were appropriate for both occasions...

R.I.P Neda
R.I.P all the other innocent people who died in Iran
Good luck to the rest of the people and hope for a better Iran

and last but not least, R.I.P the genius, the greatest musician of all time (together with Elvis Presely), the king of pop, Michael Jackson!

YouTube - Michael Jackson - Earth Song

YouTube - michael jackson - heal the world (lyrics)