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Wedding bells are ringing and Mariah Carey hears them loud and clear.

As the A-list singer continues her residency inside The Colosseum at Caesars Palace in Las Vegas, fans continue to speculate as to when the "Hero" singer and James Packer will say "I Do."

While the wedding date still remains top secret, Mariah assures fans that the couple is making progress when it comes to planning.

"We're getting it together, darling," she told E! News' Melanie Bromley backstage at her concert titled Mariah #1 to Infinity. "You know what? It's time. The dress and the whole thing. I'm working and he's working and everyone puts so much pressure."

Perhaps one of the biggest questions surrounding the big day is whether or not Mariah has a dress to wear. We quickly learned that finding the perfect outfit can in fact be checked off the to-do list.

Mariah Carey

"I have the dress," the mother-of-two shared with us exclusively. As to where this special dress is hiding? "It's in a box, darling."

Wedding planning aside, Mariah couldn't help but gush over her twins she has with ex-husband Nick Cannon. Although they continue to grow up right before her eyes, the "Obsessed" singer still can't get enough of their personalities.

"Really my babies, they make me laugh so much. I just want to keep it like that," she shared. "[James] is really great. He has his own kids and he's a fantastic father."

Mariah's World premieres later this year only on E!

To hear more about Mariah Carey's upcoming wedding and how she co-parents with Nick Cannon, watch E! News tonight at 7 p.m. and 11 p.m.