CBeebies legend Mr Tumble will be replaced after 22 years of fronting a popular kids show - but why are some particular mums so upset? That's right, Mr Tumble - or Justin Fletcher - is stepping ...

There are 15 CBeebies party bugs hiding on the CBeebies homepage this week to help us celebrate our 23rd birthday.

Listen to the Tumble Tale to find out. You can also listen to more Mr Tumble Tales and lots of other stories on the CBeebies Storytime App.