That zany clown is back again and taking center stage

Demetrius Alexandro Claudio Amadeus Bello Nock, the creative genius behind “Bello Mania,” is back by popular demand on the stage at the New Victory Theater.

Be prepared to witness brand-new antics and daredevil tricks performed as only Bello can. Families with children ages 4 and up will be delighted by this super fun show.

April 4 through 20, multiple performances. Tickets range between $14 to $38.

The New Victory Theater [209 W. 42nd St. between Seventh and Eighth avenues in Times Square, (646) 223–3000, www.newvictory.org].

Belle da Costa Greene: A Librarian's Legacy

The Morgan Library &amp; Museum will present a major exhibition devoted to the life and career of its inaugural director, Belle da Costa Greene (1879&ndash;1950). Widely recognized as an authority on illuminated manuscripts and deeply respected as a cultural heritage executive, Greene was one of the most prominent librarians in American history. The exhibition will trace Greene&rsquo;s storied life, from her roots in a predominantly Black community in Washington, D.C., to her distinguished career at the helm of one of the world&rsquo;s great research libraries. Through extraordinary objects―from medieval manuscripts and rare printed books to archival records and portraits―the exhibition will demonstrate the confidence and savvy Greene brought to her roles as librarian, scholar, curator, and cultural executive, and honor her enduring legacy.

Athletic Association of Yorkville Youths

Serving the families and children of NYC for over 50 years with high-quality recreational activities that foster life-lessons which empower young people to succeed beyond sports. Our programs encourage positive attitudes and growth through teamwork and sportsmanship, attendance, fair play, respect, hard work, integrity and fun. Your child can participate in clinics and leagues in such sports as baseball, basketball, flag-football, lacrosse, soccer, hockey, wrestling, track, and tennis. We also offer weekly dodgeball tournaments, drama and musical theater workshops, and after school programs.