In a Captain Morgan/Kelton Research survey of six hundred Americans, Brad Pitt and Angelina Jolie were named 2007's most popular celebrity costume. But since few of us have four children we can borrow for a night on the town, you might want to try one of the survey's runner-ups: Britney and KFed, Bill and Hillary Clinton, Tom Cruise and Katie Holmes, the Beckhams or the Bushes. Flying solo this Halloween? Why not go as a TV host? Of the late-night crew, those polled thought Jay Leno would make the best ensemble. Oprah Winfrey was the poll's top pick of the daytime hosts.