Previous stars of the high street retailer's campaigns include Gisele Bündchen, Miranda Kerr and Beyoncé, but this time 'Applause' singer Gaga will team up with music legend Tony Bennett to promote the brand's new collection.
A surprising choice? Maybe... but we have a feeling they'll be great!
In a sneak peek backstage photo released earlier today (27 August), we see Lady Gaga standing with Tony while wearing a toasty oatmeal-coloured jumper.
Of course the starlet added a risqué edge to her look by ditching the jeans, instead covering her pins with nothing but a pair of fishnet tights.
And check out that impressive hairdo! Gaga really has rocked every barnet under the sun, and this time she opted for a huge jet black curly bouffant with heaps upon heaps of volume. Wowzer!
The stylista also showcased a retro make-up look, adorning her lids with metallic silver eyeshadow and thick liquid liner while painting her pout a glossy orange hue.
Pop princess Gaga and 17-time Grammy winner Tony have also collaborated to create a jazz album called Cheek to Cheek, due for release on 23 September. The pair will perform one of their tracks in a TV advert to accompany their H&M campaign which is set to air at the end of November.
We can't wait to see it!
In the meantime, watch Gaga and Tony sing 'The Lady is a Tramp' below:
Are you excited to see Gaga and Tony's new campaign? Let us know by commenting below as the best comment across the site each week wins £50!
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