“Mandy Patinkin, holla.” That was Claire Danes’ shout-out to her Homeland co-star when she won an Emmy in 2012 for her role on the show. Fans across Cincinnati will be able to holla at him too (not really, that’s rude) as he performs with the Cincinnati Symphony Orchestra Friday-Sunday. Sure, many know him as Saul Berenson on Homeland or the iconic Inigo Montoya from Princess Bride, but he’s a man of the theater, too, and this weekend he joins the CSO onstage for the first time since 1991. Read our interview with Mandy Patinkin here. Krohn Conservatory’s annual International Butterfly Show opens Saturday, highlighting the butterflies of Morocco. The conservatory will fill with 16,000 colorful butterflies, floral displays and a hummingbird garden through June 30. Krohn is open 10 a.m.-5 p.m. every day; Admission is $4-$7. Earth Day is technically April 22, but Cincinnati celebrates this Saturday at Sawyer Point. Enjoy live music, a fashion show of recycled materials and other family activities while learning how to get involved with green organizations and outdoor activities. The free event runs noon-5 p.m. Check out this week’s Green Issue for more information on native plant hikes, sustainable farms and outdoor classes, markets and events. The Cincinnati Ballet promises one of the hottest parties of the year as they present Club B Saturday. The Cincinnati Masonic Center downtown will transform into a hoppin’ nightclub complete with cocktails, light bites and — of course — lots of dancing. There will also be a raffle with tons of great prizes. Tickets are a bit steep — $150 all-inclusive 7 p.m. admission; $50 tickets get you in after 10 p.m. — but the money goes to support this important local arts organization. Plus, how often can you say you’ve danced with a ballerina? Saturday is Record Store Day and Greater Cincinnati is lucky to have four local stalwarts to choose from. Support our local music shops by picking up a new record as you enjoy live, in-store performances. Go here for details on how Everybody’s Records, Shake It Records, Mole’s Record Exchange and Phil’s Music & Memories are celebrating. For more stuff to do this weekend, check out our To Do page or full calendar and Rick Pender’s Stage Door for weekend theater offerings.