Ayshah put Alesha on the spot, with a Newsround quiz.
She's judged for Britain's got Talent and Strictly, and even won Strictly herself.
How well will she do at the 'Britain's Got Talent Strictly Winners Quiz'?
What have you been doing for Children in Need 2018?
Ariana Grande says goodbye to her famous ponytail!
Firefighters still battling huge wildfires in California