Glenn Worf  Glenn Worf is an American session bassist. He has recorded with most major country music acts and currently tours with Mark Knopfler. Worf was born in Dayton, Ohio, but grew up in Madison, Wisconsin, and has concentrated on the bass guitar since he was thirteen. He majored in music at the University of Wisconsin - Eau Claire. Eventually, he abandoned the local scene and moved to Nashville. In addition to his studio work he performs regularly in and around Nashville with the likes of Mike Henderson and Kevin Welch. Throughout his career, Worf has recorded with numerous performers including Bryan Adams, Trace Adkins, Craig Campbell, Billy Ray Cyrus, Alan Jackson, Wynonna Judd, Toby Keith, Martina McBride, Reba McEntire, Tim McGraw, Mark Knopfler, Jimmy Buffett, Miranda Lambert, Aaron Neville, Lee Roy Parnell, Kellie Pickler, Kenny Rogers, Bob Seger, Sugarland, Shania Twain, Keith Urban, Lee Ann Womack, and Tammy Wynette. He is perhaps most well known for his work with former Dire Straits front man Mark Knopfler. Worf has contributed double and electric bass parts to every Knopfler solo album and is a member of his touring band. He also contributed to the BBC documentary on Knopfler, "Mark Knopfler: a Life in Songs," shown on BBC 4 on 28 January 2011.