Willie Nelson took the CMA Awards stage for the first time since 2012, joining fellow country star Kacey Musgraves for a rendition of "Rainbow Connection," the song made famous by Kermit the Frog.
Ariana Grande and Kristin Chenoweth make a dynamic duo on their remake of Lesley Gore's 1963 hit, "You Don't Own Me."
Barbra Streisand brought out Ariana Grande for a surprise appearance Tuesday during her concert in Chicago, and fans of both went nuts.
Barbra Streisand gave the crowd at London's Hyde Park a treat Sunday night, when she reunited with her "A Star Is Born" co-star Kris Kristofferson on stage.
