12 years ago, a bright-eyed tween named Rebecca Black released a ridiculous bop about looking forward to a weekend of PG fun with friends. Now 25, the curvy Californian has released her first full album Let Her Burn, and those who haven’t been keeping up with Rebecca lately may be shocked to see her transformation from mockable viral sensation to bonafide sex kitten.

Don’t believe us? Here are two of the photos making the rounds to promote the debut album, both of which feature the singer in sheer tops with hints of nip underneath. We’d say this wasn’t intentional,but this isn’t the first time Rebecca’s titillating teats have made an appearance.

In case you missed it, last year the singer released not one but two music videos that saw featured her protruding pokies, including a genuine nip slip while writhing in the back of a neon green pick-up truck in "Cafe Racer."

‘Friday’ Singer Rebecca Black Is All Grown Up (And Showing Lots of Nip)

‘Friday’ Singer Rebecca Black Is All Grown Up (And Showing Lots of Nip)

The now busty beauty just can’t seem to keep ‘em covered, nor is she really trying. Which we gotta say, is pretty hot, and now she's got us burning for more!