Nickelodeon star Ariana Grande allegedly used Canadian singer/songwriter Justin Bieber to hurt American rapper Big Sean.
It was previously reported that the 26-year-old rapper was upset with Selena Gomez's former boyfriend for getting close with Grande, during a surprise appearance at her Inglewood, California gig.
On 8 April, the Baby singer performed two songs alongside the Problems singer - Love Me Harder and As Long As You Love Me. Bieber also went solo to sing his new hit single Where Are U Now.
During the performance, the Boyfriend singer got flirty with Grande while on stage.
According to TMZ, Big Sean had split with Grande just before the concert, and he thinks the whole thing was "calculated" by her.
Adding on, sources close to the former couple also said that Big Sean ended their relationship because she was "immature."
The pair had started having problems when Grande did not turn up for his concert at the House of Blues in Hollywood, as she had to get ready for the Grammy's the next day "which he found extremely selfish."
Naya Rivera's former boyfriend had travelled to see Grande "ten times more" than she ever travelled to see him. Once the 21-year-old singer allegedly demanded he pay thousands of dollars to take a private jet and meet her. He felt she was being a "spendthrift" and hence, immature.
Before being romantically involved with Big Sean, Grande dated Australian star Jai Brooks and The Wanted's band member Nathan Sykes.