Selena Gomez and Justin Bieber have reportedly split up for a second time.
The couple allegedly had a bust-up over "high school stuff" during a New Year break in Mexico.
The pair reunited in November following a brief split earlier in 2012.
However their trip over the weekend, which was supposed to get them back on track, has resulted in another disagreement.
"It's just high school stuff," a source told TMZ about the nature of their conflict.
According to the report, the pair didn't even make it into 2013 before their relationship crumbled again.
Gomez left their holiday destination on December 30 for Los Angeles, while teen singer Bieber departed the next day on New Year's Eve.
The pair, who have not been seen together since, both took to Twitter, where they further hinted things were over between them.
"New beginnings. Fresh start. I love you all :) (sic)," Gomez wrote.
Justin tweeted a less cheerful message to his followers, following their rumoured spat.
"2013 got some big things coming.... gonna stay positive (sic)," Bieber tweeted.
In a report on the New York Daily News, sources have come forward to explain this isn't unusual behaviour for the on/off couple. However, another source told the publication the difference this time is that Selena is instigating the split.
"They keep breaking up and getting back together," a source told the publication. "It's an on-again, off-again relationship. It's probably not correct to characterise this as a final breakup."
"Selena's been giving him a really hard time," another source told the newspaper. "She's been partying without him, and it drives him crazy."
- Cover Media