Miley Cyrus

PITTSBURGH — A nine-year-old girl from Mars was part of a special celebration Wednesday when her wish to meet teen singer and actress Miley Cyrus was granted in Los Angeles as part of the Make-A-Wish Foundation's first World Wish Day.

Jenna Harrison met Cyrus along with 29 other wish children at The Grove, an entertainment, dining and shopping district. She had a private meet-and-greet with the star of Disney Channel's "Hannah Montana" and motion picture "The Last Song," and she attended a special World Wish Day celebration featuring Cyrus, according to a Make-A-Wish news release.

Jenna is the daughter of Kristy and Jeffrey Harrison of Adams Township. She attends Mars Elementary School.

"It's a privilege for me to make their wishes come true and get my good on in such a heartfelt way," Cyrus said in the release.

The Make-A-Wish Foundation will mark World Wish Day today with wish-granting celebrations throughout the United States and in 35 other countries.

Today is the 30th anniversary of the wish that sparked a global wish-granting movement and the creation of the Make-A-Wish Foundation. A young leukemia patient was granted his wish to be a police officer in Phoenix that day.

The Make-A-Wish Foundation grants the wishes of children with life-threatening medical conditions.

In 2009, the foundation granted nearly 20,000 wishes, more than 13,000 for children in the United States and almost 7,000 for children elsewhere.

For information on how to refer children or to volunteer, call the Make-A-Wish Foundation at 1-800-676-9474 or visit its website at www.wishgreaterpa.org.