He is best known for his long-term work with former members of the Grateful Dead, in RatDog (1998–2013), the Other Ones (1998–2000), Mickey Hart's band Planet Drum (1999), and Phil Lesh and Friends (2012).

Karan has also played and toured with Terrapin Flyer, Delaney Bramlett, the Rembrandts, Sophie B. Hawkins, Dave Mason, and Paul Carrack.

Karan has played guitar and sung for a number of different artists, including Dave Mason, Huey Lewis, Paul Carrack, Delaney Bramlett,[1] Sophie B. Hawkins, and The Rembrandts.

[5][6][7] It features Delaney Bramlett, Billy Payne, Mike Finnigan, Pete Sears, John Molo, Hutch Hutchinson, The Persuasions, The Rowan Brothers, and many more.

Karan has also been showcased in live performances and featured interviews on SiriusXM, in addition to commercial and specialty radio nationwide.