Katy Perry and Justin Bieber in London!

One of the London's radios Capital FM invited Justin Bieber for an interview.

They were talking about the ''Summertime ball''.

After the interview Justin decided to spend the rest of the evening in London.

He was seen together with Katy Perry and a few other friends in Cirque Du Soir.

After that, they all went to a club where they had a big bottle of Ciroc and Belvedere vodka on their table! 

So, is Katy Perry getting the American star alcohol addicted? 

Your London+