BROOKLYN - Protesters rallied today at P.S. 90's graduation this afternoon.

The principal at the school recently banned kids from singing "God Bless the USA" at the graduation ceremony, saying that the song was not age-appropriate and she didn't want to offend anyone.

Yesterday, students sang the song outside the school in protest, and more demonstrators arrived the graduation today.

Despite the protesters, the graduation ceremonies proceeded without incident. P.S. 90 students sing 'God Bless the USA' after school ban