Alesha gave birth to her first child, daughter Azura Sienna, five months ago, and is about to return to work on the talent show’s judging panel.
She told 3AM: ‘I haven't been obsessively training or dieting. I wanted to let natural take its course. I'm still nursing so I want to make sure that I'm good to myself. I always try to eat healthily, but I've not deprived myself of anything.’
‘I think I've got a lot of energy and probably that's what's helped me burn it off,’ the star added.
Alesha has been enjoying adapting to motherhood, but admits that her new role was a bit overwhelming at first.
‘It's a life-changing thing emotionally, hormonally... The whole experience is really testing. In the first couple of weeks, I felt overwhelmed, like I had to survive on no sleep. Before, when I had five or six hours sleep, I'd think, 'Oh I'm tired, I need more.' No, no, no! Five or six hours sleep is amazing!’
Britain’s Got Talent returns later this year.