Face to Face: Elton John and Billy Joel in concert

Around 7 or 8 years ago, I found out that Elton John and Billy Joel sometimes did some concerts together. Being an admirer of both of them, I downloaded (not very legally) some songs from their concerts together and I was really surprised. They were really able to take their songs to another level by playing together. Their concerts are called "Face to Face" as they both sit on their pianos facing each other and playing together.
Since that time, I have always wanted to go to one of their concerts, but they never played in Portugal. In fact, Elton John only played in Portugal this month for the second time after a concert in the 70s (not sure of the exact date).

After starting their concert series together all those years ago, Elton and Billy still do some once in a while and my friend Gal and I got tickets to see them in Foxboro, Massachussets (near Boston) in the stadium of the football team New England Patriots.
It was the first time I went to a sold out stadium concert.
The gig was awesome, and I only regret being on the top ring of the stadium (better tickets were too expensive).

Elton and Billy started together, playing four songs.
Then Elton proceeded alone with his band. Afterwards it was time for Billy and his band.
At then end, both Elton and Billy got back together and finished with seven more songs.
It was a 3h30m concert!!!

Here is the detailed set list of the concert:

Elton John/Billy Joel (only both of them on piano)

• Your Song
  
• Just The Way You Are

Elton John/Billy Joel (with their bands)

• Don't Let The Sun Go Down On Me
  
• My Life

Elton John set with his band

• Funeral For A Friend
  
• Love Lies Bleeding
  
• Saturday Night's Alright (For Fighting)
  
• Levon
  
• Madman Across The Water
  
• Tiny Dancer
  
• Goodbye Yellow Brick Road
  
• Daniel
  
• Rocket Man
  
• Philadelphia Freedom
  
• I'm Still Standing
  
• Crocodile Rock

Billy Joel set with his band

• Prelude
  
• Angry Young Man
  
• Movin' Out (Anthony's Song)
  
• Allentown
  
• Zanzibar
  
• Don't Ask Me Why
  
• She's Always A Woman
  
• Scenes From An Italian Restaurant
  
• River Of Dreams
  
• We Didn't Start The Fire
  
• It's Still Rock'n'Roll To Me
  
• Only The Good Die Young

Elton John/Billy Joel (with their bands)

• I Guess That's Why The Call It The Blues
  
• Uptown Girl
  
• The Bitch Is Back
  
• You May Be Right
  
• Bennie And The Jets
  

Elton John/Billy Joel (only both of them on piano)

• Candle In The Wind
  
• Piano Man