It's been a busy month in Katy Perry's life, and that's got nothing to do with the coronavirus.

The US pop star announced her pregnancy a few weeks ago, and shortly afterwards her grandmother sadly passed away.

Now she's in the news again - this time, for a legal matter.

You may recall that last year, a jury in Los Angeles ruled that Perry had 'improperly copied' a Christian rap song called 'Joyful Noise' by an artist called Flame (aka Marcus Gray) for her song 'Dark Horse'.

She was ordered by a judge to pay $2.8 million in damages.

However, yesterday the ruling was overturned after judge Christina A. Snyder announced that the evidence did not support the jury's decision. “It is undisputed in this case,” Snyder wrote, “that the signature elements of the 8-note ostinato in ‘Joyful Noise’… is not a particularly unique or rare combination.”

She added: “A relatively common 8-note combination of unprotected elements that happens to be played in a timbre common to a particular genre of music cannot be so original as to warrant copyright protection."

Perry has not publicly commented on the reversal yet.