Selena Gomez reveals funky new hair cut. (Pic: JOHN SALANGSANG/INVISION/AP)

Selena Gomez has admitted she used to be "very protective" of her parents when it came to their love lives, and who they dated.

The 25-year-old star's parents Ricardo Gomez and Mandy Teefey - who were teenagers when they welcomed her into the world - split when she was five, and the 'Bad Liar' hitmaker admitted she could be very selective about who they were dating.

Asked about her dating intuition, she told 'Entertainment Tonight': "I like to say [that I have] decent discernment. But I come from a separated family, so I used to get very protective over my parents when they would date."

Now, her mother and father have both gone on to fall in love and expand their families, meaning Selena has become a role model for her half-sisters, five-year-old Gracie Elliot Teefey and three-year-old Victoria Gomez.

She added: "[Gracie's] my biggest supporter. It's awesome."

The 'Hotel Transylvania 3: Summer Vacation' actress also admitted her eldest sibling would be there to watch her on the big screen in the animated sequel once it gets released.

She said: "She's just there to have a good time. I don't think my sister overthinks anything and that's what I love about her. She enjoys it. She's excited about life."