King Charles at Terminal 5

Opening act King Charles was an amazing one-man act. He also performed an updated rendition of "We Didn't Start the Fire" with many great moments.

King Charles with Cadillac Sky and Mumford & Sons

Members of both Cadillac Sky and Mumford & Sons joined King Charles to help close out his set.

Cadillac Sky violinist Ross Holmes

Cadillac Sky violinist Ross Holmes on stage during King Charles' set.

Cadillac Sky at Terminal 5

Cadillac Sky performing at Terminal 5. From left to right: Ross Holmes, Matt Menefee, and Andy "The Panda" Moritz.

Cadillac Sky guitarist David Mayfield sleeping on stage

Cadillac Sky guitarist David Mayfield taking a nap on stage after the band played a version of Edvard Grieg's "Morning Mood."

Mumford & Sons Logo at Terminal 5

The Mumford & Sons stage backdrop at Terminal 5.

Mumford & Sons on stage at Terminal 5

Mumford & Sons take the stage at Terminal 5 to thunderous applause.

Marcus Mumford at Terminal 5

Mumford & Sons singer Marcus Mumford playing his acoustic guitar at Terminal 5.

Mumford & Sons keyboardist Ben Lovett at Terminal 5

Mumford & Sons keyboardist/backup vocalist Ben Lovett singing.

Mumford & Sons Marcus singing

Marcus Mumford singing and playing his Gibson ES-335 semi-hollow guitar.

Mumford & Sons keyboard player Ben Lovett at Terminal 5

Mumford & Sons keyboard player Ben Lovett at Terminal 5.

Mumford & Sons winston Marshall and Dave Mayfield of Cadillac Sky

Cadillac Sky and King Charles rejoined Mumford & Sons on stage. Here, we have Mumford & Sons banjo/slide guitar player winston Marshall with Cadillac Sky's Dave Mayfield.

Mumford & Sons, King Charles and Cadillac Sky

After the three bands play a song written by King Charles, he asks everyone to "break it down" and thanks everyone. King Charles then gave his song to Mumford & Sons in a very genuine moment.