Celeb trend: Ex flames working together

Kareena Kapoor might have said no to ex-beau Shahid Kapur and Aishwarya Rai Bachchan will probably never work with Salman Khan again but that's not how many of the celebrity gang roll. In fact, they are letting bygones be bygones and are sharing screen space once again like true professionals.

Here's a look at the ex-files.

Salman Khan- Katrina Kaif: It's been a while since Salman Khan and Katrina Kaif were a couple but that doesn't stop Kat from hanging out with the Khan-daan.

She's always asked to their parties and functions and it seems that there's no room or time for bad blood despite the fact that Salman had announced their break-up in a television interview, followed by a very public breakdown by Kat during a press conference.

Now, Salman and Katrina, who co-starred in Partner and Maine Pyar Kyun Kiya, will reunite in Kabir Khan's Ek Tha Tiger. Katrina also appeared in an item number opposite her brawny ex in Bodyguard. These two actually set the ball rolling for others.

Deepika Padukone- Ranbir Kapoor: Ranbir Kapoor and Deepika Padukone were fellow debutants in 2008. His first film flopped and hers made her a household name overnight. But soon, the tables turned. Ranbir became one of the hottest stars in tinseltown as well as a much sought after playboy. The couple hooked up after co-starring in Bachna Ae Haseenon but much to Deepika's discomfort, Ranbir continued to be linked with virtually every girl he spoke to. The final straw in their year long relationship was his onscreen chemistry with co-star Katrina Kaif.

The Ranbir-Kat jodi was an immediate hit. And, as his career soared, his love life took a huge dip. The break-up wasn't pretty, with Deepika calling Ranbir a 'cheater' on national television.

However, after all the Tamasha, the two are now working together in Ayaan Mukherjee's Yeh Jawani Hai Diwani. Deepika was also invited to Ranbir's housewarming party and his birthday.

Shahid Kapur- Priyanka Chopra: They never admitted to dating, despite giggling and hinting heavily on Koffee With Karan, till they were outed when taxmen knocked on Priyanka's door to find it opened by Shahid. After their searing movie romance in Kaminey, they ended a series of alleged make-ups and break-ups by permanently calling it quits in 2011.

But that hasn't stopped them from cashing in on their screen chemistry. The continued to appear in ad films together and will now be seen in their second film, Teri Meri Kahaani releasing soon. The two looked rather comfortable in each other's company at the film's first look launch recently.

John Abraham - Bipasha Basu: The former models-turned-actors met on the sets of their debut film, Jism and fell in love, making for a stunningly good looking couple. Nine years later, they were still a great looking pair, but there was no ring in sight. Quietly, Bollywood's longest and strongest (or so it seemed) real life romance broke up

But, wait. There might be more of the Jism magic coming our way. According to reports, Bips has signed up for Shootout at Wadala, which also stars John. Way to go!

Anushka Sharma - Ranveer Singh: “Just good friends” is what the Band Baaja Baaraat couple claimed to be when rumours of an off screen romance first began to fly. They fell in love on the sets of their first film and were spotted together in the social circuit.

They've since broken up but admit to be the best of pals and have continued to work together. They last starred together in Ladies Vs Ricky Bahl.

Rihanna-Chris Brown: The former lovers met again at this year's Grammys, three years after their violent breakup in 2009 after Chris confessed to having assaulted Rihanna.

In February this year, Chris Brown was among the guests at Rihanna's birthday party, and now the pair have collaborated on two songs – remixes of Chris' single Turn Up The Music and Rihanna's Birthday Cake.

Marc Anthony – Jennifer Lopez : JLo and Marc Anthony announced a surprise split in 2011 after seven years of marriage. They were billed as one of Hollywood's most high-profile couples and have twin children, Emme and Max.

Though both of them are now in separate relationships, they continue to be friends and business partners and the two are now judges on talent show Q'Viva! The Chosen.

Cameron Diaz-Justin Timberlake: The Charlies Angels star put a bad breakup five years ago behind her to romance ex-beau Justin Timberlake in the 2011 comedy Bad Teacher. The two, who famously dated for four years before breaking up in 2007 amid rumours of infidelity on JT's part, surprised one and all with their decision to work together. In one of her interviews during the film's shoot, Cameron said that It was very easy for her to work with Justin.

Demi Moore - Bruce Willis: Bruce Willis and Demi Moore, who divorced in 2000, have always remained good friends. In fact, the two regularly vacation with their children and their current partners. In 2003, Demi and Bruce appeared together in Charlie's Angels: Full Throttle. Demi's role as dark Angle Madison Lee was something of a comeback while Bruce had a surprise cameo. The two also attended the film's premiere together along with their daughters. Bruce has been very supportive of his ex-wife after the shock breakdown of her marriage to Ashton Kutcher.

Courteney Cox-David Arquette: Courteney Cox met her ex-husband David Arquette on the sets of Scream (1996) and when they appeared in Scream 3 four years later, they were married (they tied the knot in 1999). The couple announced their separation in October 2010, shortly after wrapping Scream 4. But Courteney and David also promoted the film together and say they're still friends.