Celeb in 5: Thursday's best entertainment and gossip news.

1. The Bachelorette’s Blake Colman reportedly under investigation by NSW Police for ‘threatening to release revenge porn’ of The Bachelor’s Jen Hawke.

Former Bachelorette contestant Blake Colman is reportedly being investigated regarding allegations he threatened to sell nude photographs of former Bachelor contestant Jen Hawke, who he dated for a short while earlier this year.

New South Wales police confirmed to PerthNow they had received a report relating to the incident, but could not provide "further information" due to the "ongoing" nature of the investigation.

Police also confirmed to Daily Mail Australia that an apprehended violence order (AVO) was taken out by police against Blake, preventing him from entering NSW where Hawke is based.

A source also told the publication the AVO was the reason the former Bachelorette could not travel to Sydney for media appearances after his elimination.

The allegations come just five days after it was reported Colman pled guilty in a Perth court in 2015 after a street brawl. According to his victim Tristan Cooper, the reality TV contestant attacked him during a night out and claims he is still yet to receive any compensation.

“He picked me up by my neck and threw me down and my head’s whacked the corner of the window as I’ve gone down. I got knocked out and then I came to," he told PerthNow.

Mamamia has reached out to Channel 10 for comment.

2. We finally know the sex of Khloe Kardashian's baby. World can now resume normal programming.

Dearly beloved, we are gathered here today to learn a very crucial, life-altering, world-shattering fact:

Khloe Kardashian's already famous foetus is a boy. Apparently.

A number of sources close to the pair told People (who are quite legitimately the New York Times of the celebrity world), that the 33-year-old and her partner Tristan Thompson, 26, are expected to welcome their little dude in early 2018.

Thompson already has a child, 10-month-old son Prince Oliver, with his ex-girlfriend Jordan Craig.

Listen: The Kardashians fooled us, people. THEY FOOLED US. (Post continues...)

3. Lady Gaga teams up with our favourite former US Vice President for a kick-arse reason.

A message from me and my buddy Vice President Joe Biden @vp44 to the country. #ItsOnUs to protect each other. ????????

A post shared by xoxo, Gaga (@ladygaga) on Oct 25, 2017 at 12:33pm PDT

If we were listing all the team-ups we didn't see coming - former vice president Joe Biden and pop star Lady Gaga would be up there.

But team-up they have - and it's for a very good cause.

The pair have released a video on Lady Gaga's Instagram in support of the campaign It's On Us -aimed at educating Americans (and the rest of the world) about what non-consensual sex is and encouraging young people to intervene if they think a sexual assault may be taking place.

"Lady Gaga has been the voice for people who have been forgotten and people who have been absued," Biden said of his "close friend".

"It's on everyone to intervene, to stop abuse when they see it and when they hear about it."

Gaga, who has been the victim of sexual assault, shared a message to fellow survivors, telling them to reach out to family and friends for support.

"I know the effects, the aftermath, the trauma, the physical, the mental, it can be terrifying everyday waking up in your own body and not feeling safe."

4. The Weeknd is tres inspired to make amends with ex Bella Hadid... because of Justin Bieber.

Break ups are crap. No two ways about it. Whether you're the dumper or the dumped, both parties generally end up with their hearts squished into a heap on the floor at some stage or another.

You say you'll be friends when really you just want to poke the other's eyes out, and sometimes it takes years for you to not vomit in your mouth whenever they post on Instagram.

In the case of exes, The Weeknd and Bella Hadid, things haven't exactly been ~civil~ between the pair since the 'I Can't Feel My Face' singer essentially dropped the Victoria's Secret model for a fellow musician, Selena Gomez, in late 2016.

But that's all about to change, thanks to... Justin Bieber?

According to a source close to The Weeknd, the year-old intends on mending the very burnt, blackened bridge between himself and Hadid after seeing Bieber do the same with his ex, and The Weeknd's current girlfriend, Gomez.

Yeah, it's confusing. And kinda stupid, no?

"He feels like he owes Bella an apology for some stuff that went down. He really hopes they can talk it all out," the source told Hollywood Life in what we assume was a very optimistic tone.

"It’s important to him to keep positive vibes with the people in his life and Bella will always hold a dear place in his heart. He wants to make things right with her so they can be cool again."

Riiiight.

5. Snezana Markoski shares all about life with melasma.

As if pregnant women don’t have enough to deal with (you know, starting with growing a human inside them), along comes melasma.

A skin problem that causes brown or grey patches across the face, melasma has a number of causes including sun damage and hormonal changes but is particularly common during pregnancy, often called “the mask of pregnancy”. Boo.

Snezana Markoski is one woman currently wearing that ‘mask’, after giving birth to daughter Willow earlier this month.

"Damn melasma!" she recently captioned a picture of the skin condition on her Instagram story.

However, the molecular scientist, blogger and The Bachelor 2015 winner joked that she may have found a silver lining.

"Ooh well, at least I use less bronzer now," she wrote.

Small wins, you guys. Small wins.