Ruling on organizing festivals that involve music and singing

It is haraam for the Muslim to organize parties or festivals
that include haraam things, such as singing and music, mixing of men and
women, and bringing charlatan magicians, because there is a great deal of
shar’i evidence that indicates that such things are haraam and they are
causes of people falling into that which Allaah has forbidden of immoral and
evil actions. Allaah warns those who want immorality to be spread among the
believers and promote that, and He has prepared a painful punishment for
them. Allaah says (interpretation of the meaning): “Verily, those who
like that (the crime of) illegal sexual intercourse should be propagated
among those who believe, they will have a painful torment in this world and
in the Hereafter” [al-Noor 24:18]. Once it is established that these
parties and festivals are haraam, it is also haraam to attend them, because
they are a waste of time and money in things that are not pleasing to
Allaah, and they are cooperating in sin and transgression, and Allaah says
(interpretation of the meaning): “Help you one another in Al‑Birr and
At‑Taqwa (virtue, righteousness and piety); but do not help one another in
sin and transgression. And fear Allaah. Verily, Allaah is Severe in
punishment” [al-Maa’idah 5:2]. And in a hadeeth the authenticity of
which is agreed upon, the Prophet (peace and blessings of Allaah be
upon him) forbade wasting money. 

And Allaah is the source of strength. May Allaah send
blessings and peace upon our Prophet Muhammad and his family and companions.
End quote.