Defries will join current presenter Andy Akinwolere alongside other newcomer Helen Skelton, for the new series which begins on CBBC on BBC One on 23 September. Blue Peter is celebrating its 50th year.

Defries says, "Being the presenter of Blue Peter is one of the finest jobs in the world. I wake up every day thinking I can‘t believe this is happening. I have never been so happy and can‘t wait to see what other adventures Blue Peter has lined up for me."

Skelton says, "I still can‘t quite believe I am one of the new Blue Peter presenters. I‘ve always been envious of the Blue Peter team because they just look like they‘re having a great time. We‘ve done so much exciting stuff for the new series – I‘m covered in bruises already, but I‘m early for work every day."

Current presenter Akinwolere says, "I‘m really excited to be working with Helen and Joel. Helen is very sweet and sensitive and Joel is very funny – I‘m sure that Blue Peter fans will love them both."