Awesome / Celtic Thunder

• "Lauren and I" definitely deserves some mention on this page. It's their debut in 2007 and Keith, who was 20 years old at the time, comes out and sings this song, which he had written himself. Here's a clip of the performance.
• "Dulaman" is Mundane Made Awesome. It's a folk song about seaweed, but their performance of a fast, drum-heavy version in unison takes it up a notch. From the Voyage recordings, starting at 3:45.