Following the heartbreaking news that Ariana Grande and Big Sean have called time on their romance, some gossip sites soon started pointing the finger at Justin Bieber.

Why, we hear you cry? Well, remember THAT raunchy performance between Grande and JB during one of her tour dates in LA earlier this month...

[related]Despite Big Sean denying that their cosy display onstage had annoyed him, blog Celeb Dirty Laundry has since claimed that the rapper WAS in fact furious… leading him to end things with Ari.

A source told the site: “This is a love triangle gone bad if you ask us. It sounds like the Biebs played a crucial part in ending this relationship, just as we predicted at the start of the month.”

However, Gossip Cop has totally blasted the rumour, with an insider close to the situation stating that the story is “laughable”, before adding: “They are all still good friends.”

Grande and Sean confirmed news of their break-up on Monday (April 20), with a rep for the pair stating: “They both deeply care for each other and remain close friends. We kindly ask that the media respect their wish for privacy regarding this personal matter at this time."

See, no mention of Bieber AT ALL.