Appalling, though hardly surprising, Madonna (another huge talent.....not) has 'allegedly' been doing this for years.
Mick Jagger had a case against him a few years ago - a long, long time after he was relevant - and, if you heard his version of 'Just Another Night' (a dire solo effort from the 1980s) next to the song he was meant to have 'borrowed', you'd barely be able to tell the difference!
He won. The unknown songwriter lost. Money talks.
.....and yet George Harrison got dragged through the courts for the best part of 20 years over the 'He's So Fine'/'My Sweet Lord' business.
Any contempt George might have had for the record industry was well earned.....and, ironically, he hated Madonna!
Thankfully, I wouldn't recognise a Lady Wotsit song if it walked up the drive and shook me by the hand, and I sincerely hope it stays that way.