Perez Hilton got the London Wireless Festival ball rolling this morning.


Other celebrities and attendees soon followed suit; tweeting on-the-scene reports and lots of awesome pictures from the open-air concert smack in the middle of London.



https://twitter.com/KiranSeehra/status/221949932758769664

Drake tweets his love for London.

And Serena Williams.


More reports from the ground.




This fan is a bit disappointed, however.

Oh, the humanity!

https://twitter.com/Shezzz_/status/221979698836680704

Well, no vodka and all.

Twitchy will monitor the concert and bring your more on-the-scene reports and photos.