Meet some new friends at the Brooklyn Professional Women’s Group. This month, the group’s discussing “artist Georgia O’Keefee, her life and her art.” $75 per person. More.

Formed in 1998, Unchained’s popularity rose quickly and they soon became known as one of the country’s best tribute bands. The band concentrates on the early Van Halen sound fronted by David Lee Roth and fans are amazed at how much they sound like the real band. Find Tickets.

Based on the best-selling novel by Gregory Maguire entitled “Wicked: The Life and Times of the Wicked Witch of the West,” is a story about the witches of Oz before Dorothy arrives from Kansas. With music and lyrics by Stephen Schwartz (Godspell), Wicked tells tale of Elphaba, the Wicked Witch of the West and her former best friend, Glinda, the Good Witch. Elphaba, born with emerald green skin and a fiery spirit befriends Glinda who is beautiful and popular while both are attending Shiz University.

The friendship starts shows cracks as Elphaba and Glinda’s personalities begin to form. Their disagreements on the Wizard’s ruling of Oz, their vastly different personalities and a rivalry over the same love interest threatens to upset the order at their university. Appropriate for children ages 8 and up. Find tickets for the show at the Gershwin Theatre, 222 West 51st St., New York, NY 10019.

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Hear Anthony Marwood (Violin), Steven Isserlis (Cello), and Thomas Ades (Piano) perform music by Janacek, Poulenc and Ravel. A pre-concert talk starts at 6:30 PM in Zankel Hall at Carnegie Hall, 57th Street and Seventh Avenue, New York, New York. More information.