Dornacker came to the attention of Bill Spooner of The Tubes when he came to see Leila and the Snakes, and he asked her to be a part of the group's live show. "For a better part of two years," she later recalled, "I was out on the road with them." She toured with The Tubes as backing singer and dancer. She co-wrote the song "Don't Touch Me There" for the group with the ceramicist and musician Ron Nagle. The song was sung by Re Styles and appeared on The Tubes' second studio album, "Young and Rich" (1976), and was released as a 7" single. "Cathy's Clone", written entirely by Dornacker, appears on the third Tubes album, "Now".