It seems pop princess Selena Gomez’s outfits are just getting smaller and smaller.

The 21-year-old singer took to the stage at the KISS FM Jingle Ball in a teeny tiny bra and hotpants for her performance on Monday night.

The ex-Disney star arrived at the American Airlines Center, Dallas, in a sophisticated blue jumpsuit with plunging neckline with her long brunette locks in loose curls.

But once inside, Justin’s ex swapped her classy outfit for a brilliant white bra and hotpant combination with knee-high boots, which left very little to the imagination.

Look at what you’re missing, Justin

Just last week Miss Gomez did a blooming good job of showing what ex-boyfriend Justin Bieber is missing out on when she performed in a properly skimpy leather outfit during an NFL game.

Sel provided the half-time entertainment during the Dallas Cowboys-Oakland Raiders game held at the AT&T Stadium in Dallas, as part of the Salvation Army’s annual Red Kettle campaign.

The Texas native threw on a short choppy black wig and was seen jumping around the stage as she gave a very energetic performance.

Sel’s backing dancers looked equally 𝓈ℯ𝓍y, dressed in leather corsets and knee-high red socks.

Selena’s hotpants were teeny tiny

The 21-year-old donned a tassel skirt over red leather hot pants and a red and black top that just about provided enough cleavage cover.

The bubbly brunette kicked off her show-stopping performance with Like a Champion, followed by Slow Down and finished up with hit track Come & Get It, while strutting herself around the stage with a gaggle of backing dancers, including some very fit males.

But it wasn’t long before the singer, who recently admitted she had the Jonas Brothers to thank for her friendship with Taylor Swift, whipped her skirt off and pranced around in just a pair of very short shorts.

The 21-year-old gave an energetic performance

“Proud to be performing for a great organization today during the @DallasCowboys game. Support @SalvationArmyUS,” the former Disney actress wrote on Twitter.

Ahead of the show, Justin Bieber’s ex-lady friend teased pictures of her revealing outfit, writing alongside a picture of her skirt: “…almost ready”.

Speaking about the performance, she said: “I’m from Texas, so I’m a little nervous, I’m not going to lie. But I’m very honoured and I hope that we come – me, and my dancers and my band – and we give Texas a really good show and I make them proud.”

We just hope she doesn’t go all Miley on us.