What was the vision when recording your new album, When The Sun Goes Down?
"I wanted to age it up a little bit and I really wanted it to be different and fun. It's kind of a little bit European sounding too with the repetitive fun beats, baselines and things we've added. The lyric content is really fun, kind of cheeky and different for me. The imaging and artwork was really fun and I got to experiment with different eras, got to have wigs and wear crazy make-up!"
Like the psychedelic style in the 'Love You Like A Love Song' video which is definitely not what we were expecting from you...
"Thank you! That was what we were rooting for!"
Why did you choose to release the empowering 'Who Says' as your first single?
"Originally I wasn't even going to put out a third record because I was finishing Wizards of Waverly Place and going on tour. I wanted to do a single and I heard 'Who Says' and loved it and really wanted that song. The reaction it got was really great. It's really inspiring to me just to sing and then to see how my fans have reacted and the stories I've heard has been really amazing. I wanted to make a whole album that made people feel that way. 'Who Says' is very inspirational.
Your albums have arrived quite quickly after each other...
"I know! I spent two years on the first one, Kiss and Tell, and a year on the second one, A Year Without Rain, and then, like, two months on this one, When The Sun Goes Down!"
Does that mean you'll spend a month on the fourth one then?
"No! That is the one where I will start over and definitely take my time with it."
Britney Spears wrote a song on the record called 'Whiplash'. Have you met her yet to talk about the track?
"No, I have not met her but I do love her and I think she is awesome. I was very honoured to have a song on the record by her."
Have you seen the Femme Fatale tour yet?
"I've missed it so far because I've been promoting. I really wanted to see her concert in Los Angeles - everybody says it was awesome and she's doing really well. My favourite Britney song is 'I'm A Slave 4 U'. That is such a fun song."
You are doing a mash-up of Britney songs on your summer tour; anymore hints about what fans can expect?
"I don't want to give anything away but I will say that we are starting from her earliest hits to her more recent hits."
Pixie Lott co-wrote another song on the album and even makes an appearance...
"Yes! I love Pixie very much. She wrote a song called 'We Own The Night' with Toby Gad and I'm obsessed with it, I think it's a beautiful song. Originally I was just going to have the song and not feature her but I love her voice so much. I listen to the original version with her singing it more just because her voice is so beautiful. I wanted to keep some of the ambience she had on the record therefore we featured it."
Candace Bushnell recently said you'd make a perfect young Charlotte York in Sex and the City. Would you be up for it?
"That was a huge compliment and I was very surprised when I heard that - it was very sweet. But there is nothing official and I've never even been approached or anything. My mum is more of a fan because I wasn't really allowed to watch it when I was younger but I definitely love the series."
A day doesn't go by without a picture of you popping up online or in the magazines. How are you handling the increased paparazzi attention?
"It's weird. I don't think I'll ever really get used to you, to be honest. I don't like that part of my job but it does come with it so I have to deal with it."
You are in London for the launch of Disney Channel HD and marked the occasion by performing tracks from your new LP; how did it go?
"It was fun. I got to perform two new songs from my new record and also 'Naturally'. I love my fans and I love doing concerts in small venues. I performed at the Hammersmith Apollo here in London and that was awesome because it was very intimate. I was able to see my fans and interact with them which was great."
More from our Selena Gomez chat...
On her English accent in Monte Carlo: "It was very weird but fun. I think it came across fine. I love the film and worked really hard on it."
On whether we'll ever see her doing a gritty, dark drama: "Eventually I'll probably do that. I am open to doing a lot of things but probably not at the moment.
On plans for another Wizards of Waverly Place movie: "Not at the moment, no."
On whether she'll be bringing her tour to the UK anytime soon: "Hopefully! I would love that, but as of now we haven't announced any UK dates."
On what she'll be doing for her 19th birthday: "I will actually be driving up to northern California to do a concert so I'll probably just be celebrating with my fans, which is the best way."
Wizards of Waverly Place star Selena Gomez celebrated the launch of Disney Channel HD with a special showcase in London. Selena Gomez & The Scene's When The Sun Goes Down is out now.
Watch Selena Gomez & The Scene's 'Who Says' music video below: