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Robin and Amber are tying the knot this year after 18 years together

It's been a (wedding) march to the eventual aisle ever since Robin Roberts announced earlier this year that she and longtime partner Amber Laign were engaged and planning to tie the knot later this year.

In the run-up to the nuptials in just a few weeks, the cast and crew of Good Morning America decided to throw Robin, 62, a bachelorette party on the air, and the line-up is truly insane.

The longtime ABC News anchor was joined on the show by Amber, both twinning in blinding white pantsuits, and even before the party began, Robin was a bundle of nerves.

The celebration was teased all throughout the first hour of the show, with her co-host Michael Strahan making quippy comments which left George Stephanopoulos in giggles.

At one point, Amber joined the panel with the three anchors as a first glimpse of the star-studded wedding party was provided to viewers, and Robin's immediate reaction is not what you'd expect.

MORE: Robin Roberts starts return to GMA on somber note as she reflects on 'difficult weekend' for many

As Lara Spencer teased the "Road to the Ring," the former ESPN anchor had the most hilarious response, looking directly at the camera and screaming: "Help!" with a hesitant smile.

Ever the bashful type, Robin eventually leaned into the joyous occasion, which was appropriately Florida themed, in honor of their second home in Key West, greeting all her family and friends who'd made their way to the show, including her sister Sally-Anne.

MORE: Robin Roberts makes wedding day confession following absence from work

Robin got into teasing her co-stars too, saying at one point: "Y'know, this is a bachelorette party, and Michael has on too many clothes," which left the entire studio in splits.

George and his wife, Ali Wentworth, shared a sweet video message for the soon-to-be newlyweds as well, with Ali joking: "We've been married for 64 years, and it's been all unicorns."

MORE: GMA's Robin Roberts and Amber Laign prepare for double-dose of joy ahead of wedding

Also in attendance were ABC anchors Deborah Roberts, Juju Chang, Martha Raddatz, star Niecy Nash Betts, CBS' Gayle King, and legendary girl group En Vogue for a perfect performance.

A segment of the show captured the trajectory of their relationship, from their first meeting to the hardships they'd endured, including lost parents, cancer diagnoses, Hurricane Katrina, and couples counseling. However, the sentiment remained, as Robin said, that they'd "fight" to stay together and "saved the best for last."

MORE: Robin Roberts leaves ABC co-stars Lara Spencer, David Muir, in awe over appearance in photos you can't miss

After a round of "The Nearly Newlywed Game" and mocktails, the party ended with everyone on the dancefloor and a giant cake, and out popped Tommy DiDario, fitness influencer and anchor Gio Benitez's husband.

The celebration came to a close with the show as everyone gathered around the brides to be, and Robin got emotional, thanking the group present for making their pre-wedding extravaganza so special and meaningful.

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