August 29, 2014 - 18:17 BST hellomagazine.com Lady Gaga and Tony Bennett have joined forces to star in H&M's Christmas ad campaign. Lady Gaga and Tony Bennett have joined forces to star in H&M's Christmas ad campaign. The two singers, who are releasing their collaborative jazz album Cheek to Cheek later this month, will perform a track from the record in the TV campaign for the high-street retailer. Tony Bennett and Lady Gaga have joined forces for H&M's Christmas ad campaign The TV ad will debut at the end of November, and an extended version will be available to view on the H&M website. The duo will also be featured in accompanying print and online advertisements. It's not the first time Lady Gaga has worked with H&M – she officially opened their Times Square flagship store in New York last November. Tony, 88, is a jazz legend and 17-time Grammy winner. The pair have worked together before He first teamed up with Lady Gaga for a cover of The Lady is a Tramp on his album Duets II in 2011. Speaking about his highly-anticipated album with the quirky popstar earlier this year, Tony said: "Wait 'til you hear her voice." "She's a real singer," he added, talking to Showbiz 411.