WATCH: MEGHAN TRAINOR - 'MISTLETOE' / 'I'M YOURS' (LIVE PERFORMANCE)

From "Mistletoe" performance, Meghan Trainor transitions right into Jason Mraz's "I'm Yours," and then smoothly switches back to "Mistletoe."

Christmas season is just around the corner and Meghan Trainor is now all about that mistletoe.



Meghan Trainor covered Justin Bieber's Christmas hit at 1LIVE radio in Germany which Justin Bieber approved via a tweet:

 "Nice job @Meghan_Trainor. #Mistletoe :)," 

Watch:

Last month, Justin Bieber covered Trainor's No. 1 Hot 100 hit "All About That Bass" Remix.