Believe it or not, it’s already been four fabulous years since Ally Brooke, Normani Kordei, Dinah Jane, Lauren Jauregui, and Camila Cabello were grouped together on The X Factor as Fifth Harmony. Since then, we’ve seen the girls grow from teens to “BO$$es” right before our eyes; just four years after getting their dream squashed on live TV, they’re now headlining stages, winning awards, churning out hits, and inspiring Harmonizers around the world. To celebrate 5H’s birthday, let’s look back on their 15 best and biggest moments.

JULY 27, 2012 - FORMED

Just after being eliminated from the show as solo performers, the girls were placed into a group together, and 5H was born. Well ... kind of. They were originally called LYLAS (an acronym for Love You Like a Sister), then they were 1432, then X Factor viewers wisely voted to change their name to Fifth Harmony.

DECEMBER 5 & 6, 2012 - ELIMINATED FROM X FACTOR

5H made it to the final three of the competition, and made a strong showing during the live shows. They performed Ellie Goulding’s “Anything Could Happen” for the second time that season, which is widely regarded as their best song from The X Factor. They also duetted with judge Demi Lovato on “Give Your Heart a Break,” proving they can hold their own with a bona fide pop star (and foreshadowing their tour with her two years later). Ultimately, though, they were voted off the show and finished in third.

JULY 16, 2013 - “MISS MOVIN’ ON”

After scoring a deal with Simon Cowell’s Syco Music, “Miss Movin’ On” was released as the group’s first official single.

OCT. 18, 2013 - BETTER TOGETHER EP

The five-track effort, led by “Miss Movin’ On,” debuted at No. 6 on the Billboard 200 and spawned an acoustic version, remixes, a Spanish-language version, and a deluxe edition.

JAN. 30, 2014 - BARBIE PARTNERSHIP

The girls partnered with Mattel to release a global brand anthem for Barbie called “Anything Is Possible.” A line of dolls modeled after the girls was released later that year, and you know what they say: You’re only a true pop star after you have your very own doll. (They say that, right? Now they do.)

FEB. 9, 2014- NEON LIGHTS TOUR KICKS OFF

Two years after auditioning for Demi Lovato on The X Factor, the girls were opening on her massive Neon Lights tour, playing 27 arenas across North America. Not too shabby.

AUG. 24, 2014 - VMAs VICTORY

Fifth Harmony beat out Charli XCX, Sam Smith, Schoolboy Q, and 5 Seconds of Summer for the coveted Artist to Watch award at the 2014 VMAs.

DEC. 4, 2014 - FIRST WHITE HOUSE APPEARANCE

The girls took the White House by storm at the National Christmas Tree Lighting ceremony, then returned the following spring to perform at the White House Easter Egg Roll. The Obamas are clearly devoted Harmonizers.

FEB. 3, 2015 - REFLECTION

At long last, 5H’s debut studio album Reflection arrived, boasting the platinum singles “Boss,” “Sledgehammer,” and “Worth It.”

FEB. 27, 2015 - REFLECTION SUMMER TOUR

After a handful of smaller tours, the group embarked on their first major headlining tour, hitting 63 cities in North America.

JUNE 2015 - CANDIE’S CAMPAIGN

It was only a matter of time before the fashionable five were tapped to front a campaign, and it was Kohl’s clothing brand Candie’s that wisely scooped them up.

DEC. 11, 2015 - BILLBOARD WOMEN IN MUSIC AWARD

Fifth Harmony were awarded the Group of the Year prize at Billboard’s Women in Music ceremony, capping off a huge year for them.

FEB. 26, 2016 - “WORK FROM HOME”

The first taste of the group’s sophomore album was “Work From Home,” which became their first top 10 single on the Billboard Hot 100.

MAY 27, 2016 - 7/27

5H’s sophomore album, titled after their anniversary as a group, appropriately arrived on the 27th (of May, sure, but it’s close enough). Debuting at No. 4 on the Billboard 200, it became their highest charting album in the U.S.

JULY 27, 2016 - 7/27 TOUR CONTINUES, FOUR-YEAR ANNIVERSARY

And that brings us to today! After shows in Peru, Chile, Argentina, and Brazil over the past few weeks, the girls’ 7/27 tour arrives stateside for its North American leg. And, of course, Harmonizers all over the world are celebrating the group’s fourth birthday. Here’s to many more years of 5H!