Gisele Bündchen is one of the elite -- a supermodel of mythic proportions whose Brazilian bombshell body and impossibly perfect beach-y waves helped elevate her to the top of her profession. She's an anomaly. (And, let's not even get into the whole landing Tom Brady thing.)

WATCH: Gisele Gets Some Seriously Freaky Beauty Treatments

But, is there more to this Angel than meets the eye?

That's what the 33 year-old is trying to establish with her new starring role in H&M's fall ad campaign in which she does more than pose -- she sings.

In the leaked preview of the ad, which is set to hit on September 12, Mrs. Brady is seen/heard covering the Kinks' classic "All Day and All Night" (fans can download the song on iTunes to benefit UNICEF once the campaign has gone live). Can she really warble? Um. At this point, we're not exactly sure because the tease-of-a-clip has her more talking-singing than actually breaking it down. She does manage to look every bit the singing diva which, let's face it, is pretty much all that most of today's pop stars are capable of, too.

WATCH: Get Gisele's Sexy Hair Style