Tulisa was involved in another scandal this year after it was suspected that her trademark arm gesture - which showed her tattoo reading The Female Boss - was a bid to advertise her perfume of the same name.
Like Cheryl's trademark salute, every week Tulisa would show the tattoo on the X Factor stage.
OfCom are investigating whether was is classed as illegal advertising, but in retaliation the week after the claims, Contostavlos wrote Vote Little Mix on her other arm.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
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