Selena Gomez has a trick she uses when applying eyeshadow to her lower lashes and includes an unexpected beauty tool.

The pop singer and actress uses appropriate tweezers when she needs added definition on her lower lashes.

The 29-year-old demonstrated the technique in a 43-second makeup 'tutorial' she posted on TikTok for her cosmetics line, Rare Beauty.

The clip, which is set to Patsy Cline's "Crazy" song, shows Gomez using the tip of a tweezers to collect eyeshadow from a stick.

She then presses the tip of the tweezers together along parts of her lower lash line - making sure not to stain it under the eyes.

TikTok users noticed Gomez's trick and expressed their opinions in the comments section.

"The tweezers trick is so revolutionary," wrote another commenter.

"That's why [you are] a queen."

@selenagomez

@rarebeauty oh and thank you so much for the support on my new tinted moisturizer !!

Means so so much to me!

♬ Crazy - Patsy Cline

"Oh God never thought of that trick trick," said another user.

"I will use it!"

Gomez's makeup tutorial video has been viewed more than 9.4 million times.

It has also collected more than 987 likes and seven thousand comments.