Once inside, the “Wizards of Waverly Place” babe shed her outerwear to reveal a cute and sexy black halter-style minidress overtop black stretch pants with black heels.

Recently named a spokesperson for the campaign, Selena told press, “I am extremely excited to be this year’s Trick-or-Treat for UNICEF spokesperson. I want to help encourage other kids to make a difference in the world and show them that Trick-or-Treat for UNICEF is such a great, fun way to get involved.”

The animated film is directed by Bradley Raymond, telling the story of the real fairy in J.M. Barrie’s play and subsequent novel “Peter and Wendy.
“Tinker Bell” stars the voices of Kristin Chenoweth, Lucy Liu, America Ferrera, Pamela Adlon and Jeff Bennett, among others, with the movie being released on October 28th.

Held at The Beverly Hilton Hotel, the “Wizards of Waverly Place” sweetheart greeted and posed with her young fans before mingling with an A-list crowd including Hilary and Haylie Duff, Jaime Pressly, as well as Jennifer Love Hewitt of “Ghost Whisperer” stardom.

With 100% of the net proceeds to be donated to the St. Jude, the event is expected to bring in more than $1 million.

As for her life’s passion and future endeavors, the 16-year-old Disney star answered, “Music is another of my passions. I’m working on my first album for Hollywood Records. It’ll be fun dance music, out next summer, and I’ll be doing a national tour.”