While the song was a big hit in their native Australia (#8), it did not chart in the U.S. In fact, the Divinyls did not really break out in the U.S. until their eponymous 1991 CD, which includes the #4 hit "I Touch Myself." By that point, the band was essentially a duo, with Amphlett and guitarist Mark McEntee (they used session musicians when they recorded or while touring).
The "Boys in Town" video is a performance clip from the Monkey Grip movie, and it shows the band in fine form. Chrissy Amphlett really did use the illuminated mike stand in her early performances; that, combined with her schoolgirl outfit and aggressive attitude, made for a strong live show.
Sadly, Chrissy Amphlett passed away on April 21, 2013 after a long battle with breast cancer.
Cool trivia fact: yes, the Divinyls count as a one hit wonder in the U.S., as "I Touch Myself" was their only top 40 hit.