That's where she got the name. Chan Marshall ... she was playing bar gigs around Athens Georgia, was discovered by someone from Sonic Youth and she got a band toghether and before their first gig she had to come up with a name, and she saw a guy with a Cat Diesel Power hat and picked the name Cat Power!
Stone Temple Pilots had a pretty similar origin. They had to come up with a name and someone saw a bottle of STP oil and was like, hmmm what's something cool that could start with STP? Stone Temple Pilots!