Kendall Jenner knows how to turn up the heat … and she did just that in a new photo spread as she cooled off poolside — in her topless bikini!

The model recently posted a series of pics on Instagram showing her sunbathing next to the pool with her back to the photog and wearing just her thong bikini bottom.

In one photo, Kendall is all wet after rising up from the pool and adjusting her bikini. In others, she stares into the camera with sultry eyes, while posing on a lounge chair or at the edge of the pool.

Check out all the snapshots for yourself … you won’t be disappointed. And no caption needed here, BTW … and Kendall didn’t bother writing one.

Several of Kendall’s celebrity friends gave their stamp of approval by liking her sexy post, including Hailey Bieber, Gigi Hadid, Lauren Sanchez and Candice Swanepoel.

Olivia Rodrigo turned up the heat at Lollapalooza Chile Friday night as she took the stage for her headlining set in a sexy red bodysuit.

The singer’s edgier-than-usual look featured a high-leg design with cutouts resembling garters just below her hips. The curve-hugging one-piece was embellished with lacing down its center … parting at the chest to tease her cleavage.

Fans drooled over the risqué outfit … with tons online calling her “mother” and applauding the more grown-up look.

She also belted her playful punk-pop single “Bad Idea, Right?” … furthering herself from her Disney Channel roots by shaking what her momma gave her to the beat with her back turned to the crowd.

Liv momentarily strayed from her discography and covered No Doubt’s “Don’t Speak.” Remember … she joined the band on stage at Coachella last year to perform their 2000 song “Bathwater.”

The “Guts” artist’s fan-approved performance makes her announcement as one of Chicago’s Lollapalooza main acts that much more exciting.

Teddi Mellencamp just dropped some pretty shocking news … she’s back in dating mode and has already gone out a few times!

TM spilled the tea on the recent episode of her podcast with Tamra Judge — “Two Ts in a Pod.”

Saying she had been on a number of dates, TM highlighted one guy who she started talking to around the time of her brain surgery.

As TMZ previously reported … Teddi filed for divorce from husband Edwin Arroyave in November after 13 years of marriage. The pair share three kids: 12-year-old Slate 12-year-old Cruz and 5-year-old Dove.

And then in February, TM underwent surgery to remove tumors from her brain after “dealing with severe and debilitating headaches” for several weeks.

Teddi recently started radiation treatment … but she made clear that her health struggles are not going to stop her from enjoying life.