Katy gets five #1s from same LP

“T.G.I.F.” = THANK GOD IT’S FIVE: Katy Perry is about to become the first act to score five #1 singles from the same album since Michael Jackson did it with 1987’s Bad. But does she have enough momentum coming off "Last Friday Night (T.G.I.F.) " to make it six? As rollingstone.com points out, the uptempo, oh so subtle "Peacock" would appear to be likely candidate, particularly as it has already charted abroad and hit #1 on the bible's Hot Dance Club Songs chart. Closing number "Not Like the Movies," which she performed at the Grammys, is another possibility. (8/3a)