Selena Gomez glams up for the opening night of Britney Spears‘ Piece of Me live show on Friday night (December 28) in Las Vegas, Nev.
The 21-year-old entertainer was joined by Katy Perry, Sia, and her pal Markus Molinari!
Selena was seen dancing and singing along throughout the show. Later, she thanked Sia for the invitation in an Instagram caption: “Sia!! Thank you soooo much for taking me to Britney!!!! Ahhhh.”
Earlier that day, the singer posted
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