Kevin, Joe and Nick prepare to leave home to begin a concert tour.

The guys rehearse for a concert in Tucson.

The guys attempt indoor skydiving in Las Vegas.

The guys greet fans and perform in Tucson.

Joe takes a driver-training class in Salt Lake City.

Spotlighting the guys' parents, Kevin Sr. and Denise, as they attempt to keep their sons' lives as normal as possible.

The guys perform at a concert in Hollywood and attend a party after the show.

The guys emphasize eating healthy and exercising.

The guys travel across the country in their tour bus.

Nick goes on a field trip and continues his studies for high school.

The guys discuss their songwriting.

Nick discusses his diabetes and how he deals with it on tour.

Frankie, the guys' youngest brother, is spotlighted.

The guys write songs, perform, make tour decisions and update their web site.

The first season ends with the guys concluding their concert tour in their hometown of Wyckoff, N.J.

The second season begins with Joe, Nick and Kevin arriving in Italy for the first stop on a European tour.

Healthy living is the focus.

The brothers take part in a songwriting session and explain how they create melodies and lyrics.

Kevin, Joe and Nick share stories that inspired some of their songs.

The guys visit a children's hospital in Newcastle, England, and play basketball with a Special Olympics team.

The guys select a fan to record a song with Joe and then ask her to perform it on stage with the band.

The guys visit Real Madrid Stadium in Spain and challenge each other to a game of soccer.

The guys are forced to cancel a concert in Zurich, Switzerland, after Nick gets sick.

Joe visits famous European theaters to indulge his passion for acting.

Nick discusses his passion for politics, baseball and songwriting.

The guys conclude their European tour in Paris and are joined on stage by a local dance group.