She even shared a glimpse of the rehearsal process, with Streisand and Grande sitting around a white piano, their entourage looking on in amazement (because how could anybody look otherwise sitting that close to those two?).
At her August 6 show, Barbra surprised the audience by bringing the "Thank U, Next" singer onstage to help her sing "Enough is Enough (No More Tears)", which Babs originally recorded with disco queen Donna Summer.
On Twitter, Grande continued to express her emotions about the special duet, sharing that she was "shaking and crying" and that she didn't "have the words yet" to capture just how special her experience working with Streisand was. She last released the album Walls in November, which includes the single "Don't Lie to Me".