In the 16 years that Cantor Efraim Sapir has produced the annual Cantor Sapir & Friends concerts in Delray Beach, he has recruited a wide range of performers to share the stage with him, from Klezmer bands to well-known cantors. “This year’s concert will be very special,” said Cantor Sapir of the Dec. 24 event at Temple Anshei Shalom, located at 7099 West Atlantic Avenue in Delray Beach. “The theme is family and the guest performers are just that: two members of Temple Anshei Shalom’s extended family who happen to have amazing voices.” Cantor Ellen Tilem is the daughter of Temple Anshei Shalom members Jackie and David Cohen. She has been cantor at Temple Emeth in Teaneck, N.J. for 17 years. She earned a bachelor’s degree in Voice from the prestigious University of Hartford Hartt School of Music and Greenberg Center for Judaic Studies. She was ordained at Hebrew Union College, Jewish Institute of Religion, School of Sacred Music, in 1994. “The dean at Hebrew Union College describes her as having a fabulous, big voice,” Cantor Sapir said about Tilem. “Her congregation is thrilled to have her level of talent.” Rebecca Gastfried, a Boston native, is the granddaughter of Temple Anshei Shalom members Marilyn and Edward Gastfried. A graduate of the New York University Tisch School of Art/Theater, Gastfried is a Brooklyn-based songwriter, pianist and soloist, who has just released her first EP album, Unfound Beauty. The title track song, co-written with Hernan Olalla in Spain, is featured in Yellow Heart, a short film which premiered last May at Cannes Film Festival. Rebecca, whose stage name is “beccs,” describes her music as “alternative art pop style, in the realm of Fiona Apple meets Annie Lennox.” She has performed at music venues throughout New York City and in Madrid. “Rebecca has a wonderful combination of training in both Jewish and secular music,” Cantor Sapir said. “We first sang together at Rosh Hashanah service when she was in high school visiting her grandparents here. Performing with Ellen and Rebecca is going to be a lot of fun – for us and for the audience.” The concert will feature Israeli, Chassidic, Yiddish and Broadway music, as well as several of Rebecca’s original compositions. Tickets for the 7 p.m. concert are $75, $36, $25 and $18. The $75 tickets include premier seating, an after-concert reception and sponsor recognition. Tickets are available at the Temple Ticket Office Monday through Thursday, from 9:30-11:30 a.m., or by calling (561) 495- 1300. For more information, visit templeansheishalom.org.