Credit: Ed MilesLed Zeppelin singer Robert Plant currently is deep in the heart of Texas, where he and his group The Sensational Space Shifters are winding down a spring U.S. tour. The last official show of the trek takes place Sunday, March 20, at ACL Live at Moody Theater in Austin, but Plant and company will return to the venue the next day to tape an upcoming episode of the PBS performance series Austin City Limits.

Robert previously appeared on Austin City Limits in 2002.

Plant’s trek, called the Blues…Roots and Hollers tour, has seen the Rock and Roll Hall of Famer performing in a variety of southern U.S. cities. Prior to launching the road trip, Robert revealed that he’d started working on a new album with The Sensational Space Shifters.

Meanwhile, Plant gave a surprise performance on Wednesday night at the 2016 Austin Music Awards, which were held in conjunction with Austin’s South by Southwest Festival. Billboard reports that Robert hit the stage at 12:30 a.m. local time was accompanied by the event’s house band, which featured Jimmie Vaughan and Bob Dylan touring guitarist Charlie Sexton. Plant sang renditions of The Coasters‘ “Youngblood,” The Jive 4‘s “When I Was Single” and Clyde McPhatter‘s “Let the Boogie Woogie Roll.”

Copyright © 2016, ABC Radio. All rights reserved.