BURLINGTON TOWNSHIP, N.J. — Conservative groups plan to rally tomorrow near a New Jersey school where students performed a song celebrating President Barack Obama.

The planned rally has school district officials planning to beef up security at the B. Bernice Young School in Burlington Township, which houses kindergartners through second-graders.

The song drew national attention last month after a video of the performance was posted on YouTube. Conservatives say it shows how schoolchildren are being indoctrinated to idolize Obama, allegations school officials have denied.

The Obama song initially was performed during a Black History Month assembly in February and was repeated in March when author Charisse Carney-Nunes, who wrote the children’s book “I Am Barack Obama,” visited the school.

Someone apparently with Carney-Nunes videotaped that performance and posted it at the author’s Web site without the approval of school officials. A copy of that video appeared in September on YouTube, titled “School Kids Taught to Praise Obama.”

Citing concerns for the safety of students and staff, Superintendent Christopher Manno has asked organizers to reconsider the protest because classes will be held that day. Manno said protesters will not be allowed on school property and additional district staffers will be on hand.

Bill Haney, a rally organizer, said members of several groups would take part in the protest, although it was not clear Sunday how many people would be involved.

“Consider this a protest to squelch this trend to politicize our youth,” organizers said in a prepared statement. “We are supporting the constitutional rights of our children and protest against the progressive social agenda promoted by the New Jersey Education Association and the National Education Association.”