Ariana Grande and Cynthia Erivo performed a duet of 'Get Happy/Happy Days Are Here Again' at an intimate event, with some outlets reporting it was part of a tv special called 'Wicked: One Wonderful Night'. The performance is said to be a tribute to Judy Garland and Barbra Streisand. The duet was one of several performances by the pair, who also sang other songs, including a rewritten version of 'For Good' with Idina Menzel and Kristin Chenoweth.