From the NY Post:
During the show, the mayor looked right at home in a groovy get-up of long, flowing locks, a headband, suede moccasins and custom-made bell-bottom jeans.
He was festooned with funky patches, each symbolizing a city agency.
Bloomberg entered the stage on a cardboard Volkswagen bus and sang along to several reworked classics from the original Broadway show "Hair."
The musical's title tune was changed to "Times Square," a song about the pedestrian plaza created there, and "Aquarius" became "Mike-quarius."
In a song called "Good Morning Papers," Bloomberg sang about the "punch of The Post."
At one point, "Berg" is asked what he'll run for after he leaves City Hall.
"Public advocate?" someone suggests. "It'd have to be a real job," he joked.
Photo from the Daily News, which offers this:
...the peacenik leader, true to his radical spirit, announced a new initiative for the city: "Bette Midler will help us plant one million pot plants in the next 10 years."