The brunette beauty wrote on the photo-sharing platform: "Merry Christmas and many, many blessings to you and your close loved ones!! 4,000 down 6,000 more to go RARE is coming out Jan 10th. (sic)"

A source close to Selena revealed that the chart-topping star is spending the holidays at Mammoth Lakes in California, where she's been shopping and meeting fans.

The insider told E! News: "She was so nice, smiling and hugging her little sister the whole time. Her mom was really nice too. Selena seemed like she was in a good mood.

"She also took a picture with a little girl who was a fan."

Meanwhile, Selena recently revealed she wants a partner who is "genuine".

The pop star - who previously dated Justin Bieber and The Weeknd - shared some of the key traits she looks for in a romantic partner, saying she wants to date someone who doesn't try to hide their true intentions.

She said: "I love genuine, you know? I feel like in the first five seconds, I can tell if I'm meeting someone that just wants one thing. And then I can tell when it's a good group of guys and they're cool."

Selena also wants a partner who can make her laugh.

She added: "I love funny. I don't like arrogant. I don't like, um, show off-y. I love playful and adventurous but down to earth and cool."