Just a few short hours before the One-Year Anniversary Edition of the Lehigh Valley Underground First Friday Concert Series roared through South Bethlehem, two of its performers gave a harmonious preview of the night ahead.

Sister duo Karen and Amy Jones, two of the three vocalists of featured First Friday act The Beautiful Distortion, took to the Greenway on a muggy Friday afternoon to offer an afternoon of acoustic tunes rich in the pair’s trademark vocal harmonies.

The sister duo offered plenty of originals, including rarities they hadn’t performed in years, alongside imaginative covers of popular rock tunes. The photos are below!