The leader is the first from a band with female-only vocals in 16 years.

Shaed lands its first No. 1 on a Billboard chart, as "Trampoline" ascends 2-1 on the June 8-dated Alternative Songs airplay ranking.

The D.C.-based trio is the second straight act to score a first No. 1 on Alternative Songs, following Billie Eilish's "Bury a Friend," which ruled for two weeks prior to "Trampoline." Shaed is also the first act to top the tally with a first entry since Marshmello, whose "Happier" (with Bastille) led in November 2018.

"Trampoline" completes the longest rise to No. 1 on Alternative Songs in over a year, reaching the top in its 26th week, the same time that Alice Merton's "No Roots" needed to finally reign in February 2018.

Shaed becomes the first non-solo act featuring female vocals since December 2016, when The Head and the Heart's "All We Ever Knew" (which includes vocals, though not lead, from violinist/guitarist Charity Rose Thielen) led the list.

Before then, similarly arranged songs hit No. 1 by Fitz and the Tantrums ("The Walker" in 2013; "Out of My League," 2014), Of Monsters and Men ("Little Talks," 2012) and Grouplove ("Tongue Tied," 2012).

Listeners familiar with those four bands will understand the catch, though: despite featuring female vocals to varying degrees, none are led solely by women, relying (more prominently in the cases of THatH, Fitz and Grouplove) on male vocals throughout much of their catalogs, including each of those No. 1s.

So, when was the last time before Shaed that a duo or group fronted solely by a woman led Alternative Songs? One has to go all the way back to 2003, and even that comes with a bit of a technicality. That's when Evanescence's "Bring Me to Life," featuring Paul McCoy, ruled (March 29), marking the Amy Lee-led band's only Alternative Songs No. 1. But, with the addition of McCoy, the lead singer of 12 Stones, it's another song with male vocals, albeit in a featured role.

That brings us to Hole's "Celebrity Skin," the prior Alternative Songs leader whose pedigree best resembles Shaed's. The Courtney Love-fronted group's introductory single from its 1998 album of the same name crowned the chart dated Oct. 10, 1998.

Back to 2019: Shaed's moment in the sun continues a trend of more female vocalists leading Alternative Songs following a hefty down period that saw no women in lead or featured vocalist roles at No. 1 between Evanescence in 2003 and Kimbra (featured on Gotye's "Somebody That I Used to Know") in 2012. In fact, with Shaed following Eilish at No. 1, it's the first time a song with female vocals has succeeded another atop Alternative Songs since 2012 ("Somebody That I Used to Know" followed by Fun.'s "We Are Young," featuring Janelle Monae) and the first time since 1996 that both songs sport women in lead roles (The Cranberries' "Salvation," Tracy Bonham's "Mother Mother").

Shaed, led by Chelsea Lee with multi-instrumentalist twins Max and Spencer Ernst, has released two EPs, most recently 2017's Melt. "Trampoline" initially rose to prominence thanks to its appearance in a 2018 Apple commercial, a distinction shared by another aforementioned song, Grouplove's "Tongue Tied."

Meanwhile, "Trampoline" has crossed to pop radio, bulleting at its No. 16 high on the June 8 Adult Pop Songs chart and nearing the Pop Songs survey.