University of Southern Maine juniors Alexandria Velez, left, Meghan Whitten, Kayla Despain and 10-year-old Jennifer Whitten dance to Michael Jackson’s “Thriller” Saturday at Deering Oaks Park in Portland during Halloween for Haiti, an event to raise money for a playground in earthquake-ravaged Port-au-Prince. The kid-themed event, which was hosted by students from USM’s recreation leadership program and the city’s Community Recreation Department, featured pumpkin painting, games, and more, besides the “Thriller” dance lessons.