The Foo Fighters take on Roky Erickson's psychedelic classic "Two Headed Dog (Red Temple Prayer)" to celebrate 40 years of Austin City Limits. Airs October 3, 2014 on PBS.

Buddy Guy, Willie Nelson, Lyle Lovett, Double Trouble, Robert Randolph, Mike Farris, Kenny Wayne Shepard and more celebrate Stevie Ray Vaughan & Double Trouble's induction into the Austin City Limits Hall of Fame with the SRV classic "Texas Flood."

Stevie Ray Vaughan and Double trouble made their ACL debut with the release of Texas Flood, showcasing Stevie's fiery guitar playing. They returned to ACL in 1989, on the heels of In Step, the strongest record of their career. The stunning performance by Double Trouble, which at this point included keyboardist Reese Wynans, and Stevie further enshrined their work in ACL's hallowed history.

Legendary University of Texas football coach Darrell Royal was inducted into the Austin City Limits Hall of Fame on April 26, 2014. A huge fan of country music and the music scene emerging in Austin in the 1970s, Coach Royal helped expand the booking of Austin City Limits and inspired the guitar pull format of several shows throughout the early decades of the program.

There would be no Austin City Limits without Willie Nelson. His performance on the show's 1974 pilot episode kicked off four decades of the award-winning series, and has culminated in over sixteen appearances (and still counting!). He represents the best of Austin and the heart and soul of Austin City Limits.

Preview Nine Inch Nails' stunning ACL performance.

Preview Nine Inch Nails' stunning appearance on Austin City Limits with their performance of "Came Back Haunted."

Enjoy a rare television appearance by Nine Inch Nails, performing tracks from Hesitation Marks.

Stevie Ray Vaughan performs "Texas Flood" during his first appearance on Austin City Limits in 1983. Stevie Ray Vaughan and Double Trouble will be inducted into the Austin City Limits Hall of Fame on April 26, 2014.

Stevie Ray Vaughan performs "Crossfire" during his second and final appearance on Austin City Limits in 1989. Stevie Ray Vaughan and Double Trouble will be inducted into the Austin City Limits Hall of Fame on April 26, 2014.

From the original pilot episode of Austin City Limits taped October 17, 1974, Willie Nelson kicks off the long-running and award-winning series with his classic "Whiskey River." Willie Nelson will be inducted into the Austin City Limits Hall of Fame on April 26, 2014.

Willie Nelson plays his classic "Stay All Night, Stay a Little Longer" on the pilot episode of Austin City Limits, launching over forty years of televised music performances. Willie Nelson will be inducted into the Austin City Limits Hall of Fame on April 26, 2014.

Austin's reigning honky tonk king Dale Watson tapes Austin City Limits.

Kacey Musgraves performs "Stupid" from her Austin City Limits episode.

Hear Texas country from songwriter Kacey Musgraves and honky-tonker Dale Watson.

From their Austin City Limits episode, the duo perform "Michigan."

Sarah Jarosz and The Milk Carton Kids perform "Annabelle Lee" together during their Austin City Limits taping.

Sarah Jarosz performs "Over the Edge" during her latest Austin City Limits appearance.

Enjoy new acoustic music from instrumentalist Sarah Jarosz and folk songs from the Milk Carton Kids.