Is it permissible to trade tickets for musical concerts by foreign singers in a non-Muslim country, where the purchasers are non-Muslim foreigners?

What is forbidden in Islamic lands is also forbidden in non-Islamic lands. Therefore, it is impermissible to engage in the business of parties or to sell tickets for singers, whether they are Muslims or disbelievers, and whether the buyers are Muslims or disbelievers, because songs contain what is forbidden by Islamic law.