It was all about Britney from the Block yesterday, as the pop star visited a school in Jennifer Lopez's old NYC neighborhood, The Bronx.

Brit stopped by John Philip Sousa M. S. 142 on Wednesday to present a $10,000 donation from Elizabeth Arden (the make Britney's perfumes), to be used to fund the school's year-old music program.

Upon her arrival, Britney was treated to a performance by the school's band, whose director, Sal Mazzola, told her, "When you're ready to take us on the road for an opening act, we're ready."

"You'll be the first people I call," she smiled.

She was also serenaded by the girl's chorus.

Brit's appearance was a huge surprise for the kids, who only knew they would be playing for a "high-profile" guest.

"I really enjoyed the time I spent at the John Philip Souza Middle School," Britney told People.com. "I've been working with the people at Elizabeth Arden for the last five years, and I know how passionate everyone is about the school. I loved hearing the school orchestra and the children sang so beautifully. The fact that Elizabeth Arden made such a large donation for the school music studio in my name was so generous."

Good stuff.