The concert took place at the Greek Theather in LA last night!
According to various tweets, Rob was there!
Also, earlier Rob was spotted at Sony studios
miaohmywhedon: Just walked past Robert Pattinson on the Sony lot. If I were a Twilight fan I would be freaking out way more right now. Oh well.
This was posted at popsugar: Robert Pattinson was at Sony Studios in Los Angeles today recording, just wanted to let everyone know what he is up to... We miss him, oh and his hair is growing back very nicely. Looking like his old self again, georgous..