[Cover photo credit to Kelsey Runge]

Echosmith frontwoman Sydney (Sierota) Quiseng has released her new Americana-accented solo single “When a Good Thing Ends.” It captures the “heartache of watching something you love slip away and learning to let it go”.

Quiseng says:

‘When a Good Thing Ends’ captures the heartache of watching something slip away, even when you see it coming. It’s that dizzy feeling of moving forward when your heart’s left behind. It’s a song for anyone learning to let go.

In celebration of her new music and the start of her journey as a mom-to-be, Quiseng and Echosmith will be performing at The Mint in Los Angeles on January 19, 2026 for a special, one-off show to celebrate her baby shower. The evening will feature a full concert from Echosmith, solo songs from Quiseng, and a few surprises to celebrate with their hometown fans.

Quiseng released her debut solo EP, Phases, in June 2025, and also announced her global publishing deal with BMG.