Kelly Clarkson wants to write a song with Mariah Carey.

The 'Since U Been Gone" singer accidentally snubbed the 54-year-old star when the "Hero" hit-maker made a 2018 appearance on The Voice as an adviser, and, having regretted her "stupid" gaffe ever since, Kelly hopes she'll get a second chance at a potential collaboration.

Speaking on The Tonight Show, Kelly said: “She knows I adore her because I’ve run into her several times, and she’s probably got me on some security list to keep me away.

"I did something stupid... She came on The Voice, and we were working together, and sometimes I say everything that’s in my brain, and I shouldn’t do that."

The "Stronger" hit-maker recalled how they complimented one another's songwriting abilities but when Mariah suggested they pen something together, Kelly accidentally turned her down.

She laughed: “I walked away, and my friends were like, ‘Do you realize you just told Mariah Carey ‘No?’ ”

That’s not what I meant. I meant the best writing for me does not come out in that scenario. I’m usually alone. Any time you see my name on a song, I wrote it, usually, alone."

Host Jimmy Fallon then asked his guest: “You would love to write a song with Mariah Carey?

And she confirmed: “I would love to … I love you, Mariah Carey.”

The 41-year-old talk show host revealed the very first song she ever performed in front of people was Mariah's "Vision of Love."

She reflected: “I would love to say I was brave and bold. I was just stupid. I just love the song.”

Kelly previously said she felt Mariah was often overlooked as a writer because of the strength of her vocal performances.

Speaking on Las Culturistas, she said: “I’m such a huge fan of being her street team in terms of her being one of the best writers ever. No one talks about it! They always talk about the songbird and I’m like, ‘Great, vocals for days, obviously.’ But, guys, name another artist that’s that successful that wrote it all."

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Gallery Credit: Seth Berkman