Katy Perry is a singer and songwriter with international fame. Her YouTube channel has over 12 million subscribers, and almost nothing is captioned on her channel. (There was one video with Japanese captions). Here is a sampling of five videos from Katy Perry's channel that have been captioned by crowd sourced captioners.
How popular is Katy Perry on YouTube? In March 2014, Katy Perry's channel was ranked #2 worldwide.