Fifth Harmony debut 'Down,' bring out Gucci Mane & Ty Dolla $ign on 'GMA'

Fifth Harmony celebrated the release of their first post-Camila Cabello song, "Down," in major fashion Friday morning (June 2), performing the new track on Good Morning America and even bringing their friends Gucci Mane and Ty Dolla $ign out to join the party.

The girls started off the morning with their hit "Work From Home," during which Ty Dolla $ign assisted on his part, then performed their brand new track for the first time on the Central Park stage. But they couldn't deliver their first-ever performance of "Down" without their collaborator Gucci Mane -- the rapper popped up just in time to lay down his verse.

In between songs, the 5H girls talked about how their new song is the sign of a new era for the group, who became a four-piece after Camila Cabello's exit in December.

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"It's been really incredible because we've been in the studio the past few months really working hard on our album," Ally Brooke told GMA hosts Michael Strahan and Lara Spencer. "We've been creating, we've been writing. It's been really amazing, we've been having so much fun."

Dinah Jane gave a little more insight to what the new Fifth Harmony has in store, as she revealed they've worked with Skrillex and Poo Bear on their forthcoming music. "This album's everything to us," she added.

To close out the show, Fifth Harmony sang their oldie but goodie hit "Worth It." Take a look at some clips from the early morning concert below.