Well, that would be because PWL legend Pete Hammond has remixed her latest single, "Sing"—in both the Pete Hammond Radio Edit form and that of the Pete Hammond Extended Mix. Each are on iTunes, and I'd suggest downloading asap.
Look, I don't ask, I just go with it sometimes. And occasionally that leads to those awesome "spring day with the iPod on and extra pep-in-the-step" moments. Which you'll have if you download these mixes. Promise.
* Thanks to all who pointed the "Sing" remixes out after last week's Lonnie Gordon/Pete Hammond post.