and when we sing together, people say we sound as one, like when we're singing "shenandoah" or "danny boybut with different signs and different colors and different feeling and different, you know... >> rhea: now, all three of you, however, have been trained classically, and all of you sang opera at one point, right? >> matthew: that's right. i mean, we all may have had other slightly different influencing aspects, but we've all done a little bit of opera. i've done a little bit less opera than the other guys. i was sort of a leonard cohen and tom waits head growing up. but i did all of my operatic schooling, the other guys, they did much more. >> rhea: right. well, we're going to talk more in just a little while, but right now we hope that you're going to call in with a generous pledge of financial support to this station. we really do need your help. and that help is going to help us bring more great music specials like this one. perhaps you would like to make a pledge of $80 and then we can say thank you with "celtic tenors: no boundaries," the dvd, which includes two bonus songs not s