The O2 Arena is part of The O2 in London.
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- London's O2 Arena is one of the world's busiest and sold a record 2.5 million tickets last year.
- The venue is managed by Steve Sayer, a music fan who previously worked for Manchester City.
- The O2 Arena presents comedy, boxing, UFC, esports and even monster trucks as well as music.
It may not be the world's most famous, but London's O2 Arena is now one of the busiest.
The venue, part...