"We've been intentional about every moment," Sydney Sierota says. Echosmith is on the road again, and siblings Sydney, Noah and Graham Sierota couldn't be more thrilled. They're also gearing up to release their highly-anticipated second studio album, and their sparkling new single "Over My Head" is sitting pretty at No. 28 on the Adult Pop Songs chart. As the band tells Billboard, the bold, synth-driven song is a roadmap of sorts for their next era. "It's a progression," Sydney says. "It's still Echosmith at the core -- there are still real drums, real bass, the same girl singing -- but I do feel like it sounds older. We are five or six years older than we were when we recorded our first album, so naturally, there are a lot of changes that happen." The story behind the song is relatable to different situations, depending on how Sydney feels in the moment when she steps onstage. "Certain days, it feels like it's more about a friend, or it's more about my boyfriend, or it's about one of my brothers," she explains. "But it's just about miscommunication and misunderstandings, which happens in every type of relationship, no matter how hard you try."