I just got back because it was mobbed and it took me 60 minutes to get home when it would take me maybe thirty seconds to get home. I'm skipping maroon 5 sarah mglauchlin, and stevie because they aren't worth the walk it would take when the concert ends.
All in all from my perspective:
Black Eyed Peas- Awesome as always they got the croud into it
Will Smith- WOW

He's a phillian but still he's still got magic left in his arsenal
Dave Matthews Band- I was VERY Disappointed. Almost everyone went with their bread and butter except them. Dave was so obviously drunk on stage it was laughable, he only got polite applause when he was finished.
Kanye- Fantastic though I thought he was yelling a little much it was still good.
Alicia Keyes- she chose a very somber song and because the concert was running late, she only got one song, so sufficed to say, it sucked.
Toby Keith- Not really a fan of his so I wont comment as to him as I didnt get into it.
LINKIN PARK + JAY-Z!- Clearly the best performance I have ever witnessed live. The fans were going nuts and it blew everything away. I'm speechless and hoarse from singing along!
Def Leopard- I was very pleased with it although by this time I was on my way out so I missed the full feel.
Destiny's Child- Very good although more women were into it.
Bon Jovi- If it wasnt for Will Smith playing hype man, and the rap/rock colab from the grey album this would have been the best. Bon Jovi had everyone on their feet and I loved it.
All in all a very good event that I had a blast at. If i forgot to evaluate everyone, let me know I'll edit this. Hope you all get a chance to hear stevie because I'm sure he'll be great.