If you watch TV or frequent YouTube, it’s likely you’ve already gotten a taste of Beyoncé‘s latest jam as the soundtrack to a recent Pepsi spot, which depicted her doing impeccably-choreographed battle with several mirror reflections. Now, Knowles has liberated the full version of the record, which doubles as the first song release (not a single) off her fifth album. A more playful, but equally defiant counterpart to March promo cut Bow Down / I Been On, the Terius Nash-penned Grown Woman finds Timbaland serving up a syncopated, hip-swiveling percussion rhythm as the Destiny’s Child alum exults in the freedom of adulthood. Complete with an effervescent, overdubbed chorus and African-chant bridge, this joint is a tantalizing glimpse of what awaits on the pop heavyweight’s next full-length. Watch our pages for the latest on the currently-untitled set, which is due out before year’s end.