BBC's Radio 2, and took to Twitter yesterday to apologise for her "emotional breakdown" on the show.This comes after yesterday marked a year since BBC producer Simon Willis died, a dear friend and godfather to Jo's children.Jo's Radio 2 show yesterday was a sofa session with Richard Walters.Richard is a solo artist and has released five critically acclaimed albums and four EP's since 2007.Taking to Twitter, Jo posted a series of three pictures of herself with her late colleague Simon Willis.She captioned the post in view of her 365,600 followers: "Incredibly beautiful session tonight from the sublime @RichardWalters @BBRadio2."Desperately want everyone to hear it - head to @BBCSounds to listen. You won’t regret it."Sorry about the emotional breakdown Richard."This is the man I/we loved.