I've already met the blogging requirement, so I just wanted to throw in a few more groups that fit into my theme in case someone is interested in furthering their knowledge of non-traditional tuba playing.
Tuba Gooding, Jr. plays sousaphone in The Roots.
Sotto Voce is the world's foremost professional touring tuba quartet. They have recorded multiple albums and established themselves as premier chamber musicians. Euphoniums: Demondrae Thurmon, Mark Carlson. Tubas: Nat McIntosh, Mike Forbes.
Boom Pan is an Israeli surf-rock band, applying tuba sensibilities to the style of The Chantays.
Other groups are out there. Keep searching!