Songwriter-producer Todd Rundgren and local psychedelic band the Black Angels top the first wave of acts booked for the third annual All ATX show, which will be titled "All Along the Moontower: Austin Gets Psychedelic" and is set for Aug. 26 at ACL Live.

Other artists confirmed for the show include Northwest blues-rock guitarist Ian Moore (a former Austinite), singer Patrice Pike (best known for her days fronting ’90s Austin group Sister 7), hometown supergroup Big Cat (featuring singer Malford Milligan and guitarist Dave Sebree), reigning Austin Music Awards Musician of the Year Gina Chavez, and rising local band Water and Rust. More performers will be announced soon.

Tickets, $35-$125, go on sale June 19 at 10 a.m. via acl-live.com. Proceeds benefit the Health Alliance for Austin Musicians and "activities dedicated to the promotion, advancement and preservation of Austin’s musicians," according to an All ATX statement. The event also will include a silent auction of music-related items, many of them autographed, with those proceeds going to HAAM.

All ATX, an advocacy organization for local musicians, produced its first benefit concert at ACL Live in 2013 and followed with a British Invasion-themed show last year. Both events also involved the production of a benefit compilation CD featuring top local artists. A disc is in the works for this year as well and will feature tracks from more than a dozen Austin acts, including many of the show’s performers along with Bubble Puppy, Cotton Mather, Gina Chavez and Vallejo.