Selena Gomez: 'Britney Spears: Piece of Me' Opening Night!

Selena Gomez is sexy in black while posing with pal Markus Molinari at the Britney Spears: Piece of Me Opening Night Show held at Planet Hollywood Resort & Casino on Friday (December 27) in Las Vegas.

“@selenagomez this is for @itsashbenzo werk baby! #chanel,” the 32-year-old jeweler captioned the pic.

PHOTOS: Check out the latest pics of Selena Gomez

Selena was spotted hanging with Sia, Katy Perry, and Johnny Wujek during the night.

In another pic, Selena wrote on Instagram, “Sia!! Thank you soooo much for taking me to Britney!!!! Ahhhh.”