Christina Aguilera's new album, 'Bionic' will have a "fresh, sexy feel".

The 'Keeps Gettin' Better' singer said her long awaited comeback - which features production from

a wide range of artists including singer Sia, electro-rock group Le Tigre and dance group Ladytron- which will be a huge shock to her fans.

She said: "I was able to explore and create a fresh, sexy feel using both electronic and organic elements. The artists I chose to work with added so many unique sonic layers to 'Bionic'.

"My intention was to step into their world and what they do combined with my own vision and sound. The results were magic."

Christina also worked with returning collaborator Linda Perry on a new track for the album, a ballad called 'Lift Me Up', which she said helps balance out against electronic elements of the album.

She added: "The subject matter ranges from playful to introspective. I am so excited for my fans to hear the new sound. It is something I don't think anyone will expect."

'Bionic' - the follow up to her 2008 'A Decade of Hits' album - was recorded entirely at the singer's home studio after the birth of her son, Max Liron.