The U2 concert on saturday was nice. I'm not a U2 fan, but I know all their songs and I liked the concert. And there were a lot of people. The concert looked like the picture below and I've marked the place where I was standing with the red arrow. Looks like very far away, but it was ok. It is very impressive to see 50.000 people screaming and singing and jumping at the same time, from above. (Pictures shamelessly stolen from
here, thx sensei)