Lady Gaga already confirmed her September 13 concert on Sunday.

Now she’s whetting appetites with a video.

What hasn’t been confirmed is whether Lady Gaga and her new buddy, crooner Tony Bennett, will be performing together.

Bennett is scheduled to perform a day after Lady Gaga, on September 14, in Tel Aviv’s Heichal Hatarbut.

The two have a collaborative album, “Cheek to Cheek,” being released on September 19, and are the faces of H&M’s upcoming Christmas ad campaign.

The unlikely pair — she’s 28, he’s 87 — first met in 2011, following a gala in New York, where Bennett asked Gaga to sing a duet with him. “Cheek to Cheek” consists of jazz standards by popular jazz composers such as George Gershwin, Cole Porter, Jerome Kern and Irving Berlin, now sung for a younger generation less familiar with the classics.

“I never thought I would have a friend like this,” wrote Lady Gaga on Facebook. “We talk about everything, We sing, we laugh, we cry. And here were taking a selfie.” #tonygaga

Tickets are available at the Leaan Shetivchar website or by calling *8780.