Celebrity emcees, live music, hors d'oeuvres by Tucson Originals, and silent and live auctions of pet-related products and services are featured from 5 to 9 p.m., Friday, May 4; $150, $125 advance, $10 dog paid at the door includes bandana and dog biscuit. Call 327-6088, or visit hssaz.org for tickets and more information.