Katy Perry has finally addressed her 'bad blood' with America's golden girl Taylor Swift - and we have Nicki Minaj to thank for it.
Beef between Swift and Perry dates back several years, starting when Perry supposedly stole Swift's backup dancers. The relationship has been spectacularly frosty ever since.
Perry has never spoken directly about it, until now. Overnight, she tweeted a takedown of the Shake It Off singer following a spat between Swift and rapper Nicki Minaj.
That was sparked by Swift, who posted a fiery response to a tweet by Nicki Minaj about how her Anaconda video was overlooked in the MTV VMA awards nominations.
Minaj tweeted: "If your video celebrates women with very slim bodies, you will be nominated for vid of the year."