Selena Gomez had some fun with her younger self in a TikTok video shared this week.

The Love You Like A Love Song crooner, 28, was holding a rainbow colored wig as she mouthed the lines to an interview she did in 2007 at the age of 14 when she was working for Disney.

‘To my younger self: you’re not cool bro,’ The Big Short star said in her caption.

The ex of Justin Bieber sounded like an enthusiastic teeny bopper as she smiled and became animated while on the red carpet for a Teen Vogue party at Vibiana in Los Angeles.

There was a vibrant blue streak of color in her dark brown hair.

‘I’ve got a little blue going on. I don’t know, I like a little edge and a little pop in my hair so I wanted to add something different, especially for the Teen Vogue party,’ the beauty lip-syncs the audio.

The Texas native had on a T-shirt that said ‘hotter than I should be’ with a drawing off the planet as the ‘o’ in hotter making to clear the message was about climate change.

And the peppy actress added a wide belt and black shorts with stockings and high heels as well as a necklace and bangle bracelets.

Selena’s post has almost 5M likes.

Gomez is one of the top 10 highest earners on TikTok, it was reported this week with actor Will Smith number two.

And in the past month she has been posting more often.

This comes after Selena posed in a bikini for La’Mariette. She said the brand ‘celebrates women who love their bodies unconditionally’.

The Heart Wants What It Wants hitmaker took to Instagram to share a snap of her modelling one of the bold designs from her line with her friend, and she revealed the inspiration behind their collaboration.

She captioned the pool snap: ‘So grateful that I get the opportunity to celebrate my friends’ endeavors. My collaboration with @lamariette is out today!

‘What I love about this brand is that it celebrates women who love their bodies unconditionally giving themselves the grace they deserve. Hope you love it as much as I do.’

Selena also took to her Instagram Story to share a behind-the-scenes snap to show what she looked like in one of their bikinis without any editing.

It comes after the 28-year-old singer slammed society’s ‘impossible beauty standards’. The Rare Beauty founder wants to ‘challenge and eliminate’ the pressure for people to look a certain way and she thinks it’s crazy that society ‘constantly tells us that we’re not enough’.

Speaking about the correlation with mental health, she said: ‘Society constantly tells us that we’re not enough, so I wanted to start a brand to challenge and eliminate that pressure – to change the conversation.

My goal with Rare Beauty is to break down these unrealistic standards of beauty. I saw from personal experience how these impossible beauty standards were having such an effect on my mental health and I know a lot of people who felt the same way.’

And Selena is also very focused on the link between social media and mental health, so much so that she encourages her company’s employees to ‘detox’ from sites like Instagram and Facebook for weekends at a time.

She added: ‘At Rare Beauty we do social detox weekends often when we encourage our community to log off for the weekend.’