While Chris Brown is on his “Carpe Diem” tour in Europe, his ex-girlfriend, Karrueche Tran, and Rihanna are both by his side.

Tran took photos of herself in Paris, alongside Brown’s stylist, Ugo Mozie. Brown employed her as his stylist during their relationship, so that could be one reason she flew out of the country to be with him during his tour.

As Tran spends time with Brown, and helps him with his wardrobe, he is also helping her, by promoting Tran’s clothing brand, “The Kill.” On Sunday, when Brown headed to Bercy's Live Theater for his last concert in Paris, he and his entourage wore caps with the logo.

Meanwhile, though Rihanna was on “X Factor UK” to perform at the finale, she tweeted that she was flying to Paris after her show.

"Risky business #paris” the pop star wrote as a photo caption along with a picture of her hotel room.

Over the weekend, Rihanna seemed displeased that Brown was with Tran in Paris, tweeting a cryptic photo of herself lying down with Brown and the caption, “ “[Expletive]……. I miss my [expletive] #thuglife #BFFlife.”

A source told the Sun, “She can’t get it into her head that Chris will never change. She’s given him so many chances since he beat her up in 2009 and he still keeps hurting her by partying with girls.

"Letting Karrueche meet him is yet another blow for Rihanna that will further disgust her fans. They are already raging that she is back with him.”

Check out the latest photos of the trio.