Molly Lewis, an Australian performer known for whistling, has built a music career around her signature talent. Multiple outlets report that Lewis has appeared on the Barbie soundtrack album, bringing whistling to mainstream audiences. She has also performed as an opening act on tour for international artist Beck, according to the same coverage. Beyond live performance and recording credits, the articles note that Lewis has expanded her brand beyond music, including the launch of her own chapstick product line.

The reporting presents Lewis as an example of a niche skill translated into a public-facing career, with her work spanning soundtrack appearances, touring, and merchandise or consumer products. While the articles share these career highlights, they do not describe detailed background information or specific dates in the provided excerpts. Overall, the sources agree on the main milestones: work on the Barbie soundtrack, opening for Beck on tour, and the development of her own chapstick brand as part of her broader professional identity.