Making her rounds in New York City last night, Selena Gomez was spotted on her way to the Comme des Garcons for H&M Collection Preview event, all bundled up in a black wool topcoat to chase away the October chill.

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.

Earlier in the day, Miss Gomez headed over to Dylan’s Candy Bar to join up with students of P.S. 3 for the launch of UNICEF’s 2008 Trick-or-Treat campaign.

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.”