When Mark Karan takes a break from life on the road as lead guitarist with Bob Weir's RatDog, what does he do for fun? He hits the highway with his own band!

Since 1998, Mark has been touring with offshoots of the Grateful Dead (including The Other Ones, Mickey Hart's Planet Drum and Bobby Weir's Ratdog).

Before crossing over into the land of the Dead, Mark worked his guitar voodoo for the likes of Dave Mason, Paul Carrack, Delaney Bramlett, the Rembrandts, Huey Lewis, Jesse Colin Young, Alex Call and Sophie B. Hawkins.

Started in 1995, and named after founder Graham Guest's fifth generation grandfather, Moses Guest, is a Texas-based, Southern Rock band that has just enough Pop, Jazz, Funk, and Country in its veins to appeal to audiences of all ages and origins. The current lineup formed in 1998, was voted "Best Rock/Pop Band" in the 2001 Houston Press Music Awards, and have won numerous Battle of the Bands contests.

Combining the grooves of funk, rock, latin, drum and bass, reggae, swing and afro-beat with the harmonic languages of jazz, pop sensibilities, progressive composition and full on improvisation, Uncle Sammy has been turning heads and opening ears on the east coast U.S. and around the world for over four years.