What: "Godspell" (an archaic spelling of the word gospel)
Why: Based primarily on the Gospel according to St. Matthew, no two performances are alike.
What else: This musical is conceived and originally directed by John Michael Tebelak. Music and lyrics by Stephen Schwartz.
Info: 2 p.m. at the Riviera Theatre, 67 Webster St., North Tonawanda. Ticket prices: $15, adult; $13, senior/student. Call box office at 692-2413 or order online at www.rivieratheatre.org.
What: Penguin Days
Why: These birds are well-grounded.
What else: Participate in a penguin meet-and-greet, take part in a trivia contest and make a penguin craft, too.
Info: 9:30 a.m. to 4 p.m. at Aquarium of Niagara, 701 Whirlpool St., Niagara Falls. Penguin encounters included in admission -- $9.50/adults, $6.50/children, free for children age 3 and under.
What: Tower of Power
Why: Tower's rhythm section lays down a groove like no other band.
What else: Despite a decline in popularity for its self-penned material, the band has backed artists including Santana, Elton John and Rod Stewart.
Info: 7:30 and 10 p.m. at the Tralf, 622 Main St. 852-2860. www.tralfmusichall.com. $27.50 (box office, Ticketmaster).
Why: Back after a three-year hiatus, Patrick Monahan and friends have new songs to celebrate.
What else: "Hey, Soul Sister" made it to the top 10 on the Billboard Hot 100, just like "Drops of Jupiter."
Info: 7 p.m. with Butch Walker at Town Ballroom, 681 Main St. 852-3900. www.townballroom.com. $34.50 (box office, Tickets.com).
What: Bunny Fest
Why: Hop over to Choco-Logo's Factory Shop, 141 Broadway, for the second annual rabbit festival.
What else: Activities include chocolate bunny-making, face painting, bunny tattoos and photos with The Bunny (Bring your own camera, please).
Info: Timed tickets required for activities from 10 a.m. to 5 p.m. Tickets are $5 per child (ages 3 and older). Call 855-3500 to purchase. Proceeds benefit pastoral care at Roswell Park.
Your Old House
What: House Restoration Fair
Why: Don't we all need cost-effective tricks to save old windows, reuse salvage materials and reinvent space?
What else: Speak with craftsmen, artisans, material suppliers and contractors at display tables and see presentations of first-hand experiences from a carpenter, homeowners and architects.
Info: 10 a.m. to 2 p.m. at the Buffalo and Erie County Historical Society Museum, 25 Nottingham Court at Elmwood Avenue. $8.