Rihanna Alimanusura Uso kwa Uso na Mpenzi wa Mpya wa Chris Brown. Via DailyMirror.

                Six minutes, people. Let's all breathe a sigh of relief

We must be getting old, because when we read that Rihanna turned up to the Playhouse Nightclub in LA at 2.21am in the morning, to begin her night, we felt all tired.

But it's a good thing she started her night so late - as six minutes before, at 2.15am, her love rival Karrueche Tran had left the club. Eeek.

Karrueche, who's Chris Brown's on/off girlfriend, was clubbing in a white dress with a male friend, and walked out to get her car home just before Rihanna arrived. Was it a co-incidence, or did someone text Rihanna the all clear? Anyway, she only stayed 40 minutes and left around 3am.

Rihanna won the fashion war though - while Karrueche was wearing some kind of white beach cover up thing, Rihanna wore a mesh-panelled Alexander Wang dress and her new hair. You heard about her new hairstyle, right?

      Rihanna: looking good, but no pants on

Karrueche and Rihanna have a long history together - Karrueche was dating Chris Brown when he decided to split up with her last year - because he loved Rihanna. In an online video, he said: "When you share history with somebody, then you tend to fall in love with somebody else, it’s kind of difficult. I'm not trying to be a player, I just care too much sometimes."

The video was posted online the day after Chris announced his split from Karrueche, saying that: "I have decided to be single to focus on my career. I love Karrueche very much but I don't want to see her hurt over my friendship with Rihanna. I'd rather be single allowing us to both be happy in our lives."

Karrueche: not looking so good, pants situation unconfirmed

So then Chris started dating Rihanna again, but in May this year, Chris went on the radio in Australia to explain that he was "couldn't be focussed on wife-ing" Rihanna and then went partying with Karrueche. Uh oh. Chris and Rihanna traded Twitter blows , and it looked like he was back with his ex. And then THEY traded Twitter picturesand then we died of old age, because who fights through Instagram posts?           

So we can understand if every barman, toilet attendant and doorman was a bit nervous when both Rihanna and Karrueche were on the guest list. But relax: those six minutes saved us all.