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Bill Cosby got another show of support from a former co-star as he entered the courthouse for day 3 of his criminal sexual assault trial.

Cosby walked hand-in-hand with actress Sheila Frazier, who shared the screen with the famous defendant in the 1978 comedy, "California Suite."

Frazier, who also starred in the 1972 movie, "Super Fly," is married to the hairstylist for both Cosby and his wife, Camille.

Keshia Knight Pulliam walked into court arm-in-arm with Cosby on Monday.

Andrea Constand repeatedly choked up as she testified Bill Cosby drugged and sexually assaulted her back in 2004.

She told the jury Cosby had given her 3 blue pills to relax ... herbal, so he allegedly said. But Constand testified 30 minutes later she was slurring with blurred vision ... her legs rubbery.

She says she was so out of it she couldn't fight him.

Constand testified for about an hour. During cross examination, Cosby's lawyers tried poking holes in Constand's story, pointing out inconsistencies in her story. The lawyers also confronted Constand, claiming she had 2 previous "sexual situations" with Cosby. She said they were merely suggested sexual situations.

Gloria Allred, who reps other women who claim they were also assaulted, looked on in the peanut gallery.

NBA star Chandler Parsons continues to surround himself with some of the hottest women in Hollywood -- this time, he was out sunbathing in L.A. with model Hailey Baldwin.

The two caught some rays at the pool at the Montage in Beverly Hills -- and we're told the poolside tourists couldn't take their eyes off 'em ... probably due to the fact he's 6'10" and she looks insane in a bikini.

So, let's get to the point -- are they banging? Our sources say no -- they're just good friends who've known each other for a while and hang out when they're in the same city.

Too bad ... for both of 'em.

Bill Cosby just showed up for his sexual assault trial, and he walked in arm-in-arm with his former 'Cosby' co-star, Keshia Knight Pulliam.

Cosby faces 3 counts of aggravated indecent assault for allegedly drugging and sexually assaulting Andrea Constand in 2004 at his home.

The judge has allowed one other alleged victim to testify because prosecutors want to show Cosby had an M.O.

The jury of 12 has 2 African-Americans.

Justin Bieber showed everyone fear would not blind him ... as he strolled the streets of Manchester after the hugely successful One Love Manchester concert.

Justin and a pal hit up the Australasia Restaurant and Bar after he arguably stole the show with his performance.

Scooter Braun -- who along with Ariana masterminded the event -- mugged with his 2 big stars backstage during the concert.

The event raised millions for victims and families of victims in the terror attack 2 weeks ago following Ariana's concert.

Ciara's back in the spotlight ... this time on mommy patrol.

The singer and her son, Future Jr., enjoyed some sun and a little water gun action at a beach park Sunday in Seattle. It's the first time we've seen Ciara out in public in just over a month since she gave birth to baby no. 2, Sienna.

Katy Perry just left for Manchester ahead of her performance alongside Ariana Grande -- but she looks half asleep ... with a full bedtime getup.

Paps got Katy leaving Paris Sunday morning to board a private jet as she prepared to join Ariana, Justin Bieber and the rest of the star-studded lineup for One Love Manchester.

Unfortunately, Katy looks like she didn't get a good night's sleep. She's got PJs on ... including a pillow and a teddy bear with her too.

Here's something for everyone ... a smokin' hot model in a bikini with her equally attractive soccer star boyfriend on a baller yacht in Spain.

The model is Izabel Goulart -- an international fashion model who famously worked with Victoria's Secret.

Her boyfriend is Kevin Trapp -- a German soccer star who plays for Paris Saint-Germain.

The two just took a trip to Cannes for the big film festival -- and apparently needed to blow off some steam with a yacht vacation off the coast of Ibiza.

Goulart even busted out some yoga for good measure.

Namaste.

Ariana Grande arrived in the UK Friday morning ... gearing up for her benefit concert Sunday to benefit victims of the Manchester terror attack.

The singer, who arrived with her parents and BF, Mac Miller, personally worked with her manager, Scooter Braun, to book the event, which will also feature Justin Bieber, Katy Perry, Coldplay, Miley Cyrus, Pharrell, Usher and Niall Horan.

Ariana will probably board her jet a second time shortly, to make the trek to Manchester.

The concert sold out in 6 minutes.

Vili Fualaau was out with his daughter in the wake of his separation from Mary Kay Letourneau ... but let's get real -- holy crap, she's 18!

Vili and Georgia hit up a Quick Mart in Seattle Wednesday -- she's the daughter to whom Mary Kay gave birth while serving a 7-year prison sentence for having sex with a then underage Vili.

We broke the story ... Vili filed for separation from Mary Kay last month after 12 years of marriage. Mary Kay's contesting the separation for some strange reason and wants Vili's petition dismissed.

Kristen Stewart enjoyed the benefits of dating supermodel Stella Maxwell by playing photographer for her during an impromptu photo shoot ... while hanging out of a moving car ... in lingerie.

Well, only Stella was showing off her bra, but Kristen hung out the window too Tuesday in New Orleans ... to snap what we can only imagine is that perfect Instagram shot.

Great view for people in the car behind them.

Kristen is fresh off her directorial debut in Cannes. We're guessing it went well, based on this celebration.

Tiger Woods' girlfriend is sticking to her own form of therapy in dealing with her man's DUI bust -- more shopping ... and lots of it.

Kristin Smith was in Dallas Tuesday loading up a hefty bag full of what looked like shoe boxes. While her face looks bummed out, Kristin seems to be getting through by doing what she does best ... shopping.

She's a stylist.

As we reported, Kristin broke out in hysterics Monday upon learning Tiger had been arrested and charged for DUI in Florida. That didn't stop her from finishing a $5,000 shopping spree though.

In the immortal words of no one ... Keep Calm and Shop On!

Sean Penn and Robin Wright are back together in NYC ... although it's probably not a romantic getaway.

The exes, who divorced back in 2010, flew into JFK Airport Tuesday morning, and walked out together. They also left in the same SUV.

Sean does have a good track record when it comes to making peace with his exes -- see Madonna -- but this one seems to be more related to co-parenting.

Robin and Sean's 23-year-old son, Hopper, lives in NYC and recently opened up about a stint in rehab. He's publicly thanked his father for helping him clean up.

So ... mom and dad TLC mission, or rekindling?

Bella Thorne is treating her PTSD -- post-traumatic Scott Disick -- with a dose of her ex-bf, Gregg Sulkin ... just in time for his birthday.

Bella and Gregg did lunch and a movie together Monday. The exes grabbed burgers in Studio City before taking in the flick for his birthday celebration. They broke up last summer, but Bella was still clinging to him as they strolled.

She also hung out with Gregg at his crib. And by hung out ... we mean lying on his back while wearing just a bra.

Bella seems to be screaming "Scott who?" Of course, he's moving on too.

Scott Disick is burning every bridge he can with the Kardashian-Jenners, but at least he's doing it with super hot chicks ... like Chantel Jeffries.

Scott and Justin Bieber's ex-gf got super cozy on a yacht in Monaco Sunday. He seemed to be letting his hands do the talking ... to her bikini-clad ass ... while they lounged on a daybed.

As we reported, Scott's run afoul of the Kardashian sisters with his revenge mission against Kourtney. The Chantel rendezvous won't help that situation.

She's been friendly with Kylie Jenner ... so, we have no doubt his name will come up in a convo between them sometime soon.

New day, new chick? Over the weekend, Scott was seen getting flirty with Sofia Richie. She's already denied there's anything going on between them, but she has been hanging with Chantel over in Monaco.

Sofia took a pass, but Chantel looks like she's all in.

1:14 PM PT -- Sofia has some choice words for folks making a big fuss about her hanging out with Scott Disick. In her own unique way, she says they're just "homies."

Scott Disick may have decided Bella Thorne was actually too old, because now he's hanging with an 18-year-old.

Scott was cruisin' the South of France on a yacht with Sofia Richie this weekend. They were super flirty, as he lifted and carted her around.

Scott brought 19-year-old Bella over to the Cannes Film Festival last week, where we believe he hasn't watched a single flick. She's back in L.A. now, and he's on at least his 4th chick.

BTW, it looks like one of the other women on the yacht is Chloe Bartoli ... one of the 4.