A day after their final game of the season, Chelsea held their open-top bus parade to celebrate winning the Premier League an the Capital One Cup and it proved rather eventful.

For one thing, we learned that Jose Mourinho should never sing.

We also learned that if you throw celery (explanation here) at Diego Costa, he will relish the chance to throw it right back.

Nothing to see here, just Diego Costa throwing celery very aggressively at Chelsea fans. #CFC #Champions pic.twitter.com/Yb8Xfgu7eG — Chelsea Overload (@ChelseaOverload) May 25, 2015

And we learned that Chelsea have some bus parking jokes of their own.

How’s this for a parked bus! #alltheway pic.twitter.com/9MYFsRJROD

— Chelsea FC (@ChelseaFC) May 25, 2015