Jennifer Lopez dated Diddy, aka Sean Combs and Puff Daddy, from 1999 until 2001.
And on Saturday evening the exes reunited in Las Vegas as J-Lo’s current beau – former baseball player Alex Rodriguez – was in the wings.
The 49-year-old beauty was at Planet Hollywood for her last All I Have show.
Close again: Jennifer Lopez dated Diddy, aka as Sean Combs and Puff Daddy, from 1999 until 2001. And on Saturday evening the exes reunited in Las Vegas
Reunited and it feels so good: The beauty gave her ex a warm hug; they have not been seen together in quite some time
According to an eyewitness, Diddy, 48, was ‘front and center’ during her racy performance, watching her every move.
‘Alex was facing stage left in the audience, but Diddy was front and center so he could see her very well,’ the eyewitness tells DailyMail.com.
‘Jennifer saw Diddy in the crowd and sang to him. She seemed to be performing with a wink and a nod to him. At one point, she shouted out Diddy’s name so the entire audience knew he was there.
‘Then she screamed out Alex’s name too. So she was very aware her ex and current boyfriend were both in the audience.
‘She also performed a tribute to her kids Emme and Max.’
Also seen were Alicia Quarles from DailyMailTV, LL Cool J, Vanessa Hudgens, Ashley Graham, Pia Toscano, Ja Rule, Adrienne Bailon and Jersey Shore after hours host Julissa Bermudez.
Kings of the game: Diddy, J-Lo’s manager Benny Medina and guest attend the after party for the finale of the ‘Jennifer Lopez: All I have’ residency
Showbiz Royalty: An array of famous faces ventured to Las Vegas on Saturday night to see Lopez’s, 49, final performance of her residency at the Planet Hollywood Hotel
The stunning songstress wore a full length cat suit emblazoned with glitter and a halter neck.
She showed off her gym-honed figure and toned arms at the show, as she brushed back her golden locks into a high ponytail paired with giant hoop earrings.
The Jenny From the Block hitmaker finished off her look with sky-high golden stilettos.
Jenny from the block: She showed off her gym-honed figure and toned arms at the show, as she brushed back her golden locks into a high ponytail paired with giant hoop earrings
Family first: Former New York Yankees player Alex, 43, was on hand to offer his girlfriend support as he bought the star’s families along to see her final showcase
Jump and hug: J-Lo shared a tender moment with her daughter Emme at the after party
Loved up: Looking almost a glamorous as J Lo herself, A Rod paired pink silk trousers with a matching shirt
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On the last night of the spectacular Jennifer Lopez show in Las Vegas, you can bet JLo and ARod (JRod? ALo?) brought their A+ game in fashion. The multi-hyphenate rocked a head to toe skin tight look from TOM FORD’s Fall 2018 collection.
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Later, she donned a leopard print fur cover up and posed with her daughter Emme, 10, her niece, Lucie Wren Lopez-Goldfried, 10, and Alex Rodriguez’s daughters Natasha, 13 and Ella, 10.
Beau Alex opted for an all pink ensemble.
Looking almost a glamorous as J Lo herself, A Rod paired pink silk trousers with a matching shirt.
Collaboration: Rapper LL Cool J joined J Lo on the stage for her final performance, the residency was named ‘All I Have’ after her 2002 hit of the same name featuring the rapper
Age defying beauty: The Jenny From the Block hitmaker finished off her look with golden jewellery
Earlier this week, the Yankee couldn’t contain his admiration for his love for the star after posting a video of the pair working out.
The Instagram caption read: ‘Full speed is the only speed @jlo knows, and that’s one reason why she inspires so many people around the world. Tonight she completes a wild Vegas journey of 120 shows over a record-breaking 3-year residency.’
‘#AllIHave isn’t just the name of the show, it’s what she has given to her audiences every single night. That’s what makes her great. When she hits the stage, the audience gets her best effort.
‘That was true on her first performance, will be true tonight and it has been that way every show in between. She is working as hard today as she does every day and it’s amazing to watch.’
Power vocals: The star wowed on stage in her final perfomance at the Zappos Theatre at Planet Hollywood
Power couple: The two have been dating since March 2017 and often share pictures of their families hanging out together on social media
Jennifer began playing the show at Planet Hollywood Resort And Casino in January of 2016.
A-Rod and J-Lo – whose relationship has earned the affectionate fan nickname J-Rod – have been dating since at least last March.
She shares 10-year-old twins Max and Emme with her third ex-husband Marc Anthony, who since splitting from J-Lo has married and divorced again.
J-Lo has previously been married to actor Ojani Noa and backing dancer Cris Judd – with neither relationship producing any children.
Mummy’s girl: The Maid in Mahattan star linked arms with her daughter, Emme, as she left the after party
The superstar later headed to Mr Chow at Caesars Palace for the show’s after party.
Amid the guests was Sean ‘Diddy’ Coombs, who had a high profile relationship with the Wedding Planner star in the late 90s.
The pair locked eyes and chatted, both waving their arms in the air as hundreds of guests mingled with the stars, and were even photographed hugging.
Celebrations: The Grammy nominated star celebrated her achievement in style, and cut a luxurious looking cake while dancing with family and friends
Cutting the cake: Jennifer beamed as she saw the 10-tier cake, created to celebrate her three years in Vegas
Well baked: Former baseball player Alex showed his support for his girlfriend at the after party
On the floor: The disco superstar later took to the dance floor and showed off her famous moves
The Grammy nominated star celebrated her achievement in style, and cut a luxurious looking cake while dancing with family and friends.
She later took to the dance floor and showed off her famous moves.
Vanessa Hudgens lead the flurry of a-listers at the show to watch the last J Lo performance.
The High School Musical alum smouldered in a silk khaki dress with a plunging neckline.
She showed of her enviable limbs with a thigh-high split.
Singing sisters: Vanessa Hudgens lead the flurry of a-listers at the show to watch the last J Lo performance
Sultry: The High School Musical alum smouldered in a silk khaki dress with a plunging neckline
The triple threat, 29, who released a new single this week, paired the sultry ensemble with a reflective chunky silver heel.
Her silky raven tresses were pinned back into a smooth up do.
Also there was supermodel Ashley Graham.
No rest: Ashely Graham, 30, has just returned to the states from fashion weeks across the globe
The 30-year-old, who has just returned from walking bevvy of shows in London, Paris and Milan flaunted her famous curves in a thigh-skimming snake-skin mini dress and matching heels.
The 5ft9 star added to her height with a strappy stiletto heel and giant hoops.
Also at the show was Pia Toscano, whose elimination of the tenth season of American Idol shocked then-judge Jennifer Lopez.
The stunner showed off her incredible abs in a tiny crop top and strappy skirt.
Old friend: Pia Toscano, who’s elimination of the tenth season of American Idol shocked then-judge Jennifer Lopez went to see her former mentor
Veteran rapper Ja Rule, 42, donned a burgundy suit and dark shades as he headed into the show.
The Grammy-nominated star, who was recently dissed by Emimen on his new album Kamikaze paired the suit with a plain black t-shirt and polished black boot.
Disney Channel alum Adrienne Bailon also attended wearing a thigh-skimming white shirt dress. She posed with Jersey Shore after hours host Julissa Bermudez who wore a tight black dress with thigh-high splits.
Suited up: The Grammy-nominated star Ja Rule, who was recently dissed by Emimen on his new album Kamikaze paired the suit with a plain black t-shirt and polished black boot
Thigh-skimming: Disney Channel alum Adrienne Bailon also attended wearing a thigh-skimming white shirt dress. She posed with Jersey Shore after hours host Julissa Bermudez