Justin Bieber is known for causing trouble and now he's even doing it indirectly.
His on-off relationship with Selena Gomez is causing problems with her best friend Taylor Swift.
Sources have told Us Weekly: "Taylor hates him. She thinks Selena makes a mistake every time she reconciles with him.
"Bieber has really come between the girls."
The friends have been close for years and on Selena's 21st birthday last month Taylor even described her as like a sister.
Despite this, Taylor apparently struggles when she sees her friend letting Justin back into her life time and time again.
The 21-year-old former Disney singer refuses to answer questions about the Canadian pop star but they have frequently appeared to rekindle their romance.
A source told Hollywood Life: “Let’s be honest, she can’t date a regular guy, so hooking up with Justin seems safe."
Another insider also told the site: “Every time Selena breaks up with Justin, she trash talks him to all her friends and gets everyone to join in.
“Then she ends up running back to him and it’s just awkward for everyone.”
Back in May at the Billboard Music Awards, Taylor was caught on camera making her feelings known.
When asked about the couple - who were together at the time - she declined to answer.
It seems the girls try to avoid the issue with each other as much as Selena does with the press.
As long as it doesn't ruin the friendship ladies!
It's unlikely that Justin's recent behaviour would have helped to change Taylor's mind.
The Canadian pop star is reportedly facing deportation after becoming involved in a nightclub brawl.
An immigration attorney told US Star: “If Justin is convicted of assault or battery, he could be refused admission to the United States or be placed into removal proceedings from the United States."