About Us


Discover the heart of Glendora High School Show Choirs. We’re a community dedicated to excellence in music, performance, and personal growth, inspiring students to achieve their best on and off the stage.

Our Legacy

Glendora Show Choirs are more than just performance groups; they’re a vibrant community dedicated to excellence, growth, and the joy of music. Over the past few years, our program has flourished, becoming one of the top five show choirs on the West Coast and earning national recognition. This success is a testament not only to the talent and hard work of our students but also to the enduring support of our families and the community. Led by Matt Davis, our program is driven by a vision that extends beyond the stage. We’re committed to shaping the lives of our students — instilling confidence, teamwork, and resilience that carry well beyond their school years. Being part of Glendora Show Choirs means joining a legacy, a family, and a tradition of excellence that continues to inspire and impact the lives of our students long after they’ve graduated.

Meet Our Team


Show Choir Director (Open Role) We're Looking for A Visionary Director

Glendora Show Choirs is entering an exciting new chapter! While the District’s official job listing focuses on the basics, we want to share what this role truly means to our community. We are searching for a visionary director who will inspire students, nurture their love of performance, and lead our award-winning choirs—Highland Heirs, Silhouettes, and Royal Stewarts—into the next era of excellence.

We celebrate the incredible foundation built by Matthew Davis, whose leadership and passion transformed Glendora’s choir program into a nationally recognized, life-changing experience for hundreds of students. From classroom to stage, he helped create a program that is both musically outstanding and personally impactful.

Our next director will carry that legacy forward —

bringing creativity, energy, and heart to a program that is thriving, supported by a dedicated booster board, passionate parents, and a vibrant Glendora community that believes in the power of the arts.

View the GUSD District Job Listing →

Susia Ruddell Choreographer & Show Designer

Susia Ruddell is a freelance show choir choreographer and show designer living in Los Angeles, California. She is a graduate of the University of New Mexico where she studied dance with a focus in flamenco, performing arts design, and adolescent development. She has worked all around the country designing one-of a- kind shows, creating costumes, choreographing, and teaching performance skills to students every year. Her passion to build a community within the performing arts has made her a leader in building programs across the region. She spends her free time going to Cosmetology school, crafting, and snuggling with her Bearded Dragon, Ducky.

Katrina Villareal Tech Director

Katrina Villareal has almost a decade of experience in lighting design and programming, technical direction and SPRAT rigging. She studied International Relations and Social Welfare at the University of Hawaii at Manoa. She has worked in almost every facet of lighting: from Theme Parks (Walt Disney Co. and Knott’s Berry Farm), National/World Tours, and Film. Her need to learn multiple forms of lighting has translated into a well-rounded approach in teaching students that there are many avenues they could explore as possible careers in the future. She is an avid golfer and enjoys spending her time with her dogs: Otis and Riley and annoying her lizards, Ducky, Xena, and Stubby.    

Sioeli Aliki Choreographer

Sioeli Aliki is a performer and creative with a passion for music, dance, and movement. He graduated from Hart High School and is currently pursuing his education at College of the Canyons in Santa Clarita. During his four years at Hart, he was deeply involved in the choir program—starting with the intermediate group Hart n Soul during his freshman and sophomore years, before moving up to the advanced ensemble Sound Vibrations as a junior and senior. Throughout all four years, he also sang in the bass choir, Unleashed. Sioeli has been dancing for 5 years with Generation DCD, where he continues to train and perform as a member of their dance team. He brings a vibrant energy and a foundation in hip hop, aiming to create a fun and welcoming environment for those he works with. When he’s not dancing or performing, Sioeli enjoys playing video games and hitting the gym. He looks forward to inspiring others with his passion and enthusiasm.

Peter Kirkpatrick (Outgoing) Accompanist

Besides taking formal piano lessons, Peter Kirkpatrick was given the chance to work with his local church choir in high school (in the Pacific Northwest), which helped kick-start his love affair with working with choirs and vocal ensembles as an accompanist. He's worked with high school, middle school, and college productions in Southern California, and served 18 years as the music director for a Spanish language ministry of Metropolitan Community Church of Los Angeles. He studied math at USC, but after that brief detour from the arts, went back to L.A. City College to earn an A.A. In music. He's also in a holiday caroling group!

Thank you!

For your support of our Glendora High School Show Choirs. Your generosity provides incredible opportunities for our students, gifting them with a love of the arts, music, and performance; that they'll carry with them for a lifetime.

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