some holiday spruce. While at BBC Radio 1's Live Lounge Tuesday (Dec. 3), the 27-year-old pop star covered Wham!'s 1984 classic "Last Christmas" as well as performed a solo rendition of her smash ...

Wham!'s second album was appropriately titled ... and Johnny Marr), perform ... [+] live on stage, 1984. (Photo by Pete Cronin/Redferns/Getty Images) The debut album from the Manchester band ...