Back in the UK for just a few short days, we couldn't resist the offer to catch up with her about new LP Stronger, her impending tour and British heavyweights Adele and One Direction.
Read on to find out what Kelly had to say.
Welcome back to the UK!
"Thank you. I love coming here, it's always fun! I'm very excited. We only came in for a little bit [last month] - just two days when the album was coming out. We were so excited to be here when it was coming out."
Are you happy with how the album has performed?
"Honestly, I don't know [how it has]. I'm the worst at keeping up with it. I'm so in promo schedule; my manager laughs at me because I'm like one of the only people who doesn't like numbers. I don't like the numbers to gauge... I just want to be happy with what I'm doing regardless of it doing well or not. But he said it's doing well!"
If this was the first Kelly Clarkson album someone bought, what would they learn about you?
"I think one thing you could probably say for all my albums is that they're all pretty eclectic pop. There's always a little bit of urban influence, some dance, a little bit of country, singer-songwriter, pop-rock. I like everything! On every album you can find that. This one in particular, sonically it sounds better. Technically we picked the right mics, the right producers that would really bring out the live, raw factor of my voice. I sound better on this album. It sounds like how I sound live."
Will we be seeing you live in the UK next year?
"We start the tour in the States in January - for which we just got the routine through. Then we go to Canada, Europe and Australia. All of the songs are going to be really good live songs."
Do you prefer doing the acoustic sets to putting on a big show?
"Ohh I definitely prefer a small show. Don't tell anyone I said that; you don't make money doing that! We just did an LA show like that - I've been dying to do showcases when each album came out. It was just a small little club type thing for the fans that really, really want the material. We finally got to do one in LA for this album. It was my favourite show that I've ever done in my whole life. It was just so packed with people who were so excited - it's almost like how much I get excited about a Paddy Griffin, Adele or Miranda Lambert record. It's great to have that energy."
As a songwriter, do you ever worry about giving away too much of yourself?
"I'm the perfect amount of guarded. I don't reveal too much, and I never reveal who the songs are about. They are real life. People get that. I date a lot of musicians and they do the same thing. People that work with me - who I write about too - they get it. It's my creative outlet, my therapy. It's a creative environment and it's where you get stuff out. That's what makes Adele popular."
Speaking of Adele, you've mentioned wanting to work with her...
"I love her, but I guess that won't be happening any time soon! Vocal surgery would scare the s**t out of me. I wouldn't like that. But I think it'll be good for her. A voice like that, it sounds better when it's torn. Do you know what I'm saying? It sounds better when it's raspy."
How much of a Twitter fan are you?
"I love Twitter! At first I made fun of it, because it is very narcissistic, and there's already so much narcissism flowing in this industry, I was like, 'Really, one more?' So I was against it at first. But I really love the idea of the direct connection - there's no middle man muddling it up. I love that people can ask me something and I can answer them directly - that's priceless."
It also leaves you open for having the negative feedback directed at you. Do you receive much criticism?
"Oh, I get crap loads! Sometimes what we laugh about most, is when you click on someone's profile, they've just created their account. They've just set up their account to tell you how ugly, trollish, fat, mean or stupid you are. And I'm like, 'Who does that?!' Who sits around, who has that kind of time? It's so funny. Sometimes it gets to me, and sometimes I laugh it off, because I'm just like, 'Really?'"
Between promotion and touring, are you going to find time to get back in the studio?
"I'm always in the studio. I'm writing stuff right now for the next album and for other artists, so I'm always in the studio - especially when on the road. I'm always writing!"
You mentioned writing for other artists, anything you can tell us about?
"Well, I've got a song on One Direction's album called 'Tell Me A Lie'. It's a really cute song - I love it. I loved that they liked it. They sound really great on it. I already have it - I'm so VIP with my copy on my computer! It does sound really good."
We're guessing you've not seen much of The X Factor USA since you've been busy?
"I haven't seen any of it! I've been trying to. We did X Factor here and then we went back and I had a full week of promo in New York, so I didn't see a TV. I didn't even sleep then so I'm surprised I'm alive. I'm performing on it though! We've not settled what song, we've just confirmed that I'm doing it."
What would your advice be to the contestants at this stage of the competition?
"To anybody getting in the industry, regardless of it being on a show like that, the point is to be different and bring something different to the table. We already have the thing that some people are aiming to be. They'll be like, 'Adele's big right now', so someone will come in and try and rip off Adele. It's like, 'We already have Adele. We don't need you'. It's key to find something that's different about you and will really want to make people buy your stuff."
Kelly Clarkson's fifth studio album Stronger is out now.
Watch the music video for her latest single 'Mr Know It All' below: