Cheryl brands Cher "unappreciative", Example questions Alexandra Burke's real age and Kanye West offers Taylor Swift a grovelling apology. We round up the biggest spats in pop star history.
Calvin Harris Reveals His "Surprise" At Lady Gaga's Twitter Attack - Video
The 'Bounce' DJ tells Capitalfm.com he thinks the US star took his recent remarks the wrong way.
The 'Marry The Night' singer accused the Scottish star of making up the story before he admitted it was her label who had requested the collaboration.
"[I was] a bit surprised because it had been on Wikipedia for four years," he confessed. "And I didn't say anything bad."
The man behind Rihanna's worldwide smash hit 'We Found Love' revealed simply how he turned down the chance to work with the singer due to his busy schedule and said such occurrences can be frequent in the business.
"I just said I didn't have time to do a remix – which frequently happens with all sorts of people. It's not really a problem," he added. "Something was taken the wrong way, or it was reported again, four years later, in the wrong way."
He concluded: "But, it's just one of them things."
The pair quickly apologised for the misunderstanding on their social network accounts and Calvin told Capital he would be open to working with her in the future.
Calvin released his new album '18 Months this week, which features collaborations with the likes of Ellie Goulding, Tinie Tempah and Example.