Ally Brooke Hernandez, Camila Cabello and Lauren Jauregui have joined the One Million Club…

The Latina singers and their fellow Fifth Harmony mates’ latest single, “Worth It,” is the group’s first single to sell more than 1 million downloads. Since its release in March, the single has sold 1.2 million digital copies to date, according to Nielsen Music.

“Worth It,” Fifth Harmony’s third single from debut album Reflection, has continued to perform well on the Billboard Hot 100 after becoming the group’s first Top 20 hit earlier this year. The Kid Ink-assisted track stays at its No. 14 peak on the chart this week. And the girls tell Billboard they’re elated — and more than a little shocked — that the song has taken off.

“With ‘Worth It,’ we were really surprised,” 5H’s Normani Kordei tells Billboard. “We love the song, but we were kind of surprised, to be honest.”

“It’s normally the songs that you don’t really think that are the hits!” added Dinah Jane Hansen.

Fifth Harmony tracks like “BO$$” and “Sledgehammer” helped earn the group a loyal fan base, but “Worth It” is growing at radio, up 7 percent this week with 79 million in audience while staying at No. 10 on the Radio Songs chart.

“This is definitely our biggest single to date for sure, and so just to see it continue to climb and see it on the charts with Ed Sheeran or Taylor Swift, or whoever’s big right now, it’s right next to them and right there with them,” says Jauregui. “It’s frickin’ platinum! To say it’s platinum, that a million people bought that song, it’s amazing. It’s so incredible to see that the support has gone beyond our fan base.”