It's back on! Diddy and Cassie look loved up as rapper throws girlfriend a huge 30th birthday party after THAT 'massive row'

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They had an explosive shake-up last week during which police were called and a domestic incident report was made.

But Diddy, 46, and his off-and-on girlfriend Cassie were definitely acting like the happy smiling couple at the singer-actress' 30th birthday bash on Friday night.

Khloe Kardashian, the VIP guest, captured the couple's lovey-dovey ways on Snapchat as Diddy and the gang sang 'Happy Birthday' to the Honey 3 star.

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Serenade: Diddy sang and carried the cake as his definitely on-again girlfriend Cassie celebrated turning 30 years old on Friday following last week's explosive row

Blushing birthday girl: Cassie was all aglow as the 46-year-old rapper presented her with a rose-covered three-tiered birthday cake

Diddy took charge of the festivity and was seen presenting a gorgeous three-tier cake topped with white roses to his on-again love, who was virtually glowing in the light of the camera's spotlight.

Cassie, whose real name is Casandra Elizabeth Ventura, was certainly pleasing to Diddy's eyes.

She was wearing what appeared to be a white bikini top beneath a white stylishly embellished jacket.

VIP guest: Khloe Kardashian captured the couple's lovey-dovey celebration while putting in her own pouty display on Snapchat

Special: The hip hop mogul wanted to make this night special for his lady love after what appeared to be a turbulent few days for the couple

Fun for all: A group of very enthusiastic friends joined Diddy and Cassie at the birthday bash

There was a wreath of white roses and green leaves in her bouffant brown and golden hair, and curling tresses tumbled over her shoulder and down her back.

Diddy's expression was all pride as he brought the birthday cake forward, the singing pals crowding all around.

According to E! News, the couple had a brief break but now are 'back together.'

'Diddy won't ever let Cassie get away. He loves her so much,' a source told the news site. 

Roses: Cassie - whose real name is Casandra Elizabeth Ventura - wore a wreath of white roses 

Daring décolletage: The Me & U hitmaker wore what appeared to be skimpy outfit beneath an embellished white jacket 

Pride: Diddy looked happy and proud as he lavished attention on Cassie

Earlier in the day, Diddy posted a sultry photo of his bikini-clad lady.

'HAPPY BIRTHDAY BABY! @cassie I LOVE YOU ALWAYS. GOD BLESS YOU,' Diddy captioned the snap.

Of course, Khloe, 32, managed to hone in on the fun, pursing her lips and fawning for the lens.

Sparkly: Khloe continued to play with the sparkly filters on her Snapchat

Kissing you: The 32-year-old Keeping Up With The Kardashians kept on puckering

Khloe was heavily made-up with lined glossy lips, eye shadow and thick mascara as she cuddled up to her pals.

Meanwhile, Diddy and Cassie's fun-loving display followed a turbulent episode in their relationship.

The couple - who have been seeing one another off and on since 2007 - reportedly started arguing in a car in Beverly Hills on the afternoon of August 17 after Cassie said she wanted to break off their romance.

Adoration: Earlier in the day on Friday, Diddy posted a sultry photo of his bikini-clad lady

'Back together': A source told E! News that 'Diddy won't ever let Cassie get away. He loves her so much'

According to TMZ, the rapper grabbed Cassie's phone and start scrolling through it as they were driving home.

Once they stopped, Diddy then jumped out of the vehicle with the phone and she went away with the driver, TMZ reported.

The rapper eventually returned to their shared Los Angeles house and took two cars parked outside.

Fight: Diddy and Cassie's loving display followed a fight on August 17 that reportedly started when the young singer wanted to end the romance and he retaliated by taking her phone; the couple was pictured July 6

Meanwhile, Cassie had told her mother what had happened before her lover got back to their house, and her mom called police.

Officers visited the residence but left when Cassie explained she had got the phone back, though they still wrote up a domestic incident report.

However, US Weekly reported on August 19 that the couple remain together despite the massive row.

This is not the first time Diddy and Cassie have gone their separate way, with the couple splitting up temporarily last December.

At the time, she made an Instagram post which has since been deleted which read: 'How I sleep knowing that I'm single and no one is cheating on me.'

Still together: However, US Weekly reported on August 19 that Diddy and Cassie (pictured March 7) were still together despite the explosive row that resulted in police coming to their house and writing up a domestic incident report