Humdinger is made of :
Eamon Ryland: Vocals, Guitar, Mandolin, Steel Guitars...
Giuseppe Patane': Basses, Keys, Background Vocals...
Brett Borges: Drums and Percussion...
2 of the names you should know from Matchbox 20 group
they have music samples at
http://www.myspace.com/humdingerusa
They just relased thier Cd this year
their official website is http://www.humdingerlive.com/
Cd is also available at CDbaby and singles at itunes
they also have a page at garageband