The rabbis in Israel are banning separate seating concerts!
"The Committee's directives include a complete ban on mixed-gender performances, even those with full separation. Male singers are prohibited from performing in front of women in any setting. Exceptions will only be made for events within synagogues under strict supervision.
Simultaneously, singers and producers are required to sign a commitment to adhere to these rules. Anyone who refuses will be subject to a ban: the letter urges the public not to book, or honor them, and urges producers not to represent them."
The threat to ban singers who won't sign is particularly offensive.
Via Hirhurim. (Yeah, I know he doesn't call it that anymore.)