Our Story


A Cappella Pops is a high-energy mixed-voice a cappella group of more than 30 singers who sing a variety of a cappella music from jazz to gospel, show tunes to contemporary songs. Performing in intricate four-to-eight part harmonies, in an exciting and fast-paced style, Pops combines great singing with carefully-woven dialogue and movement to create a seamless experience that keeps audiences eager for more. Based in the Delaware Valley and founded in 2000, Pops performs under the direction of Jonathon Flowers.



All Pops members are experienced singers and musicians. Each must audition to enter the group, then re-audition annually to ensure the quality and integrity of the Pops sound. Many of our members sing in other groups as well, including choruses, quartets, and bands.



Our members come from all walks of life and are active in other organizations as well, including churches and charitable organizations. We are called upon to support these groups with fundraisers and concerts. In addition Pops has begun to offer music workshops for schools and colleges when in conjunction with a performance.

This is A Cappella Pops!


Check out A Cappella Pops in performance and hear from both group members and audience members about their experiences. Our YouTube channel also hosts more performance videos; you can subscribe by visiting A Cappella Pops on YouTube.


A Cappella Pops was founded in 2000, when Jan Muck and Tom Hailey got the inspired idea to start a local cappella chorus. With Jan as principal director, Pops recruited accomplished singers from around the Tri-state area, building a top-rate show chorus specializing in popular music favorites.


Over the years, Pops gained a reputation for fusing intricate eight-part harmonies with a lively stage style. The group continued to expand its repertoire to include a range of genres –– from oldies to jazz to contemporary hits, as well as novelty, old-time and patriotic tunes –– and to widen its performance horizons, adding to its original concert offering a variety of formats that include flash mobs, weddings, corporate functions, and church and community events.


Pops has sung at Carnegie Hall, The White House and World Cafe Live, among other venues. In 2009 the group conducted a four-city concert tour of New Zealand.


Upon Jan’s retirement in 2012, Pops hired Pasquale (Pat) Montenegro as music director. A versatile and talented musician, Pat helped the group further polish its presentation and sound. His sudden death in 2017 found Pops once again searching for a director. Six months later, the group hired interim director Miku Shiota to take over as full-time director. In mid-2018, Pops began a search for a new Director, and after a very thorough search process, Pops engaged Jonathon D. Flowers as our new permanent Director.

Jan Muck

Jan Muck


Director 2000-2012

Pat Montenegro

Pat Montenegro

Director 2012-2017

Miku Shiota

Miku Shiota

Director 2017-2018

Jonathon Flowers

Jonathon Flowers

Director 2019-


A Cappella Pops In Performance

Performance Venues Include:


  • Independence Hall – Philadelphia
  • New Zealand Tour
  • World Cafe Live at The Queen – Wilmington, DE
  • Longwood Gardens – Kennett Square, PA
  • Kimmel Center – Philadelphia, PA
  • Private Parties
  • Weddings (Flash Mobs)
  • A cappella workshops
  • Church Concert Series
  • Corporate Events
  • Non-Profit Fundraisers


You can see photos and videos of some of these events on our Performances page.

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