Who are these guys?

Scott is MacOne. His last name is MacGougan.

Deb is MacTwo. Her last name is MacGougan, too - for over two decades now! 

MacOne writes the songs and plays the guitar and MacTwo provides the vocals. 

They wanted to make some music that would celebrate everything that is good and right and true in a way that was both fun and cool. (You can let them know if they're getting close. They'd like that.)

Sometimes they play as TwoMacs wth just the two of them.
Sometimes they play as TwoMacs & Friends and recruit friends and family to fill out the ensemble. (And when they do, their son, Mr. Devon MacGougan (AKA MacThree) comes and plays bass!)