Benjamin Ivan Jelen (born 8 July 1979) is a Scottish-born American former singer-songwriter who plays the piano, violin, and guitar.

Instead, Jelen handed him a demo, and shortly thereafter, he was signed to a label and released his debut album Give It All Away in May 2004, promoted by appearances on TRL, AOL Breakers and Rock the Vote.

He wrote and recorded a song for a compilation album for Tori Amos' RAINN organization[10] and joined the Natural Resources Defense Council (NRDC) and Wildlife Works.

[11] Jelen performed at the 2007 South by Southwest (SXSW) conference and music festival in Austin, Texas, in a lineup that also included Taylor Hicks, Amy Winehouse, Tom Morello, Mika, Martina Topley Bird, The Fratellis, Bloc Party, Paolo Nutini, Rodrigo y Gabriela, Mogwai and Spoon.

In November 2018, Jelen completed a Ph.D program in Environmental Science at Rutgers University, successfully defending his dissertation titled, "The Evolution of Microbial Electron Transfer on Earth."

Jelen's music has been featured on the TV shows One Tree Hill, Smallville and Las Vegas, and was used to promote the Academy Award-nominated Finding Neverland starring Johnny Depp and Kate Winslet.

Jelen, a graduate of Princeton High School, also guest starred on the Princeton-set television show House as a doctor applying for a fellowship in the episode "Kids".