Willie Nelson performing at Spotify House on Sunday, March 13, 2016. Photo by Getty Images for Spotify House

Visitors to the Spotify House pop-up SXSW venue in East Austin got a special treat Sunday when Willie Nelson showed up for a set full of his classic tunes, with his band and trusty guitar Trigger in tow.

It was Willie’s second local appearance of the weekend, following his traditional opening-night concert at Rodeo Austin on Saturday.

This week’s big event for Willie is on Friday, when artists ranging from Jenny Lewis and Lucius to Billy Joe Shaver and Jack Ingram gather at his ranch in Spicewood for the Luck Reunion.

Spotify House, 1601 E. Sixth St., is an official SXSW venue today through Friday with afternoon performances by acts including Chvrches, Kacey Musgraves, Miguel, Vince Staples and Lucius. Check spotifyhouse.com for details.