You're neck and neck with Michael Jackson for No.1 tonight. Feeling nervous?
"In normal circumstances it would, of course, be the most amazing thing ever. For me though, it's just a real privilege to be in the same vicinity as him. I'm going to get the countdown framed just for that. If we go all the way it'll probably shock me more than anything else. I don't really go crazy, but I might crack open a bottle of champagne!"
'Evacuate The Dancefloor' is quite an unusual name for a song, isn't it?
"It's got a double meaning, totally. Evacuating something can often be about having an illness, but we've taken it in the positive way. As the lyrics say, it's about being infected by the sound and the beat being so cool that it's just too intense for people. This single is so important to me because we're trying to open up more creatively and show a bit more of what we can do. I think we've already shocked a few people because it's so different from the old stuff."
What would make you evacuate the dancefloor?
"Well, I don't like to diss people and I love pretty much all music genres, but I really can't dance to those really slow hip-hop songs. I need it to be funky, so that's the time I'd go and sit down or get a drink. I'm sure some people might have evacuated the dancefloor when we've been on though!"
Some people have said that you've ripped-off Lady GaGa's sound. How would you respond to that?
"Yeah, I have heard that. I don't like the term rip-off because it's a bit negative. We started the album about a year ago and 'Evacuate' was one of the first songs that we recorded when Lady GaGa wasn't even around. Someone told me they read on the internet that we actually inspired her. I don't know if it's true, but that would be amazing. We've been around for a long time and we've worked hard for our success, so there's no reason for us to throw away everything that we're respected for. You do evolve and progress and we're very proud of what's come of it."
How would you describe the new album?
"It's a very mixed album compared to our previous stuff. Nearly every song is different from each other, but we've still stayed true to the sound that got us noticed in the first place. We've tried a lot of new things - there's some house on there, an acoustic number, a ballad and some more Kelly Clarkson-style rock influences too. I think this album is a lot more interesting and I can't wait to hear what people think."
You've already had two top ten albums. What's the key to your success?
"I don't really know. We get asked that question a lot and I'm never sure how to answer because we don't actually have a secret. I think we came along at just the right time and we've always worked really hard touring and making sure we reach out to our fans. A lot of people don't realise how successful we've been and how many records we've sold in the past few years because our profile isn't really that high."
Would you ever go on a reality show to raise your profile?
"I'm very open to trying new things, but I'm not a big fan of reality shows. I don't think it's that necessary right now. The fact that we make dance music is what's put up a barrier in limiting our public interest, but on the other hand it's helped me to keep a private life. I don't get hounded in the same way other stars do. Having a smaller public profile works in our favour when you consider the success we've enjoyed."
Where do you get the best reaction when you perform live?
"Seriously, British people are the same everywhere and they know how to have a good time! They're not even that different to people in other countries. Fans are fans and they show their love if they're feeling it. I always try and rock the stage and give them good value because at the end of the day they're the ones keeping us going."
You've already recorded lots of songs by other artists, but who would your ideal collaborator be?
"Someone like Justin Timberlake would be brilliant. People who can work with him are so lucky because he's just so talented. Obviously Michael Jackson would have been amazing, even just to meet. I'd also love to sing with someone like Alicia Keys too."
September's album comes out soon after yours. Could there be any rivalry there?
"One of my closest friends works with her and I've heard she's a really great girl. We're all in this job because we want to make music and to fulfill what our soul wants to do. It's not all about money, so best of luck to her. I'm not really into rivalry. It's about pleasing the fans and having a good time yourself. Of course sales are important, but one place up or down doesn't really make too much of a difference."
Finally, we've been compiling a poll of Michael Jackson's most popular songs. What's yours and why?
"Oh my god, there's so many! 'Dirty Diana' was always a song I loved like crazy, but when it comes to making an impression on me as an artist it's got to be 'Smooth Criminal'. I used to get up in front of my family and do the whole routine - the hat included. 'Gone Too Soon' is also one of my favourites and it sums up my sentiments about him now and why it's so strange being up against him for number one."
Cascada's single 'Evacuate The Dancefloor' is out now. Their album of the same name is released tomorrow.