Samantha and David Cameron were in Oxford this weekend, running the Sport Relief mile.
Whilst David wore shorts and a sports top for the mile run, Samantha wore a onesie!
Staff and students at Ringwood School attempted to break the world record for the largest gathering of people wearing onesies.
Over 1000 people at the school congregated in the sports hall, which in turned raised £1200 for charity.
The official attempt will be announced later this month.