Alicia Keys to donate instruments to her high school

(CBS/AP) Grammy award winning singer Alicia Keys is returning to her high school to give back.

The singer will visit the Professional Performing Arts School in Manhattan on Tuesday and donate musical instruments to its students.

Keys says her alma mater is underfunded and overcrowded, "and I hope to make this better for them."

She will also launch an online contest where people can share how they would use $1,000 "to make the world a better place." It is part of the global campaign, "World of Betters."

The contest begins Tuesday and ends Dec. 15. The winner will receive $1,000 to help realize their plan.