But now the girls want to slow things down over the festive season with their new romantic ballad single.
The band decided to go back to basics for the video of Beautiful Because You Love Me, which contains plenty of close-up shots of the girls.
The video opens with scenes of former X Factor judge Cheryl Cole, kick-starting the vocals as she touches her face and body.
The 29-year-old can be seen standing in a nude-coloured negligee. A
Strictly Come Dancing star Kimberley Walsh (31) shows off her enviable figure as she lies in bed with just a sheet to cover her modesty.
Nicola Roberts (27) is covered in dust sheets as she shows off her vocal range, while Irish member Nadine Coyle (27) performs sings in the bath.
Blonde singer Sarah Harding (31) is seen leaning against a wall while wearing a white nightie.