Cheap$kate: FREE events in NYC this week

‘Madonna — A Transformational Exhibition’
Making its way to the W Hotel in Times Square, “Madonna — A Transformational Exhibition” features never-before-seen photographs of the music and fashion legend sporting some iconic 1980s styles. (Opens Friday, through May 12, FREE, W New York — Times Square, Living Room, 1567 Broadway, 212-930-7400, rockpaperphoto.com/madonna)

Health

Half-Marathon Health & Wellness Expo
Start on the road to a healthier lifestyle by stopping by the Metropolitan Pavilion this weekend for the MORE and Fitness Magazine Half-Marathon Health & Wellness Expo. It features activities including fitness seminars, product samplings, shopping and more. (Friday, 11 a.m.-7 p.m., Saturday, 10 a.m.-5 p.m., FREE, Metropolitan Pavilion, 125 W. 18th St., morefitnesshalf.com)

Festival

UWS Celebrates Israel @ 65
Join in on this four-day celebration of Israel’s 65th birthday on the Upper West Side. The JCC in Manhattan on Sunday will host a plethora of events, including food tastings and music. And be sure to stop by the Yom Ha’atzmaut Celebration and Festival at Columbia University for an afternoon of games, dancing, food and text studies. (Sunday, noon-4 p.m., FREE, go to uwsisrael.org for complete schedule, location and more information.)