In our rush to anoint a new celebrity diva with every turn of the moon, perhaps we’d be wise to remember the reigning diva has not relinquished her crown. There is no diva more deserving of the title than Liza Minnelli, a superstar by any measure. A winner of an Oscar, Tony, Grammy, Emmy and many other honors, Minnelli brings her act to Portland for a show at 7:30 p.m. Wednesday at Merrill Auditorium, presented by Portland Ovations.

Minnelli, 64, releases her latest CD, “Confessions,” this week. It’s a collection of timeless pop songs. She’ll perform material from the new CD as well as songs from throughout her career at Wednesday’s concert, accompanied by a jazz sextet.

Tickets cost $50, $75 and $125 through PortTix, the Merrill box office; 842-0800 or www.porttix.com.

Portland photographer Arthur Fink will show an exhibition of work, “Dance 2010!” at his studio and gallery at 145 Newbury St., just off India Street in Portland. The show opens with a reception from 5 to 8 p.m. Friday as part of Portland’s First Friday Art Walk, and continues through the month.

Fink has been working with dancers for more than two decades. This show includes images shot during his six summers as resident photographer at the Bates Dance Festival, at the Omi International Dance Collective in 2008, in dancers’ studios in Boston and New York, and at various other events.

The exhibit is generally open 9 a.m. to 5 p.m. weekdays, but visitors should call 615-5722 or write [email protected] to confirm.

At 8 p.m. Saturday and 2 p.m. Oct. 3, pianist and University of Southern Maine faculty member Laura Kargul will celebrate the bicentennial of Chopin and Schumann by performing several major works of each composer. The concerts will be at Corthell Concert Hall on the USM Gorham campus. Admission is $15; $10 for seniors and USM employees; and $5 for students. Call 780-5555.