Muslims are not allowed to attend events that involve music, singing, dancing, alcohol or the mixing of genders. The fact that we have these things everywhere in the western world doesn't make them permissible.
Allah (SWT) says:
“And leave alone those who take their religion as play and amusement, and whom the life of this world has deceived. But remind (them) with it (the Qur’aan) lest a person be given up to destruction for that which he has earned, when he will find for himself no protector or intercessor besides Allaah” -- [al-An’aam 6:70]
“And of mankind is he who purchases idle talks (i.e. music, singing) to mislead (men) from the path of Allaah without knowledge, and takes it (the path of Allaah, or the Verses of the Qur’aan) by way of mockery. For such there will be a humiliating torment (in the Hell-fire)” -- [Luqmaan 31:6]
Missing your prayer for the purpose of something that doesn't provide any real value is something that I'd definitely stay away from. Doing something for the sake Allah (SWT) has great rewards in the sight of Allah (SWT).
For more info, please refer to, https://islamqa.info/en/45789
And Allah (SWT) knows best.