iOS 8.3 Music App annoying glitch with artist & album artist name

Ok, so I updated my iPhone 5 from iOS 7 to iOS 8.3 about two weeks ago and just today while listening to a song of Britney Spears, the artist name showing in the music app was wrong because it showed "Britney Spears featuring Madonna" while Madonna doesn't feature on that song. I thought there could be a mistake on the purchase. I checked the iTunes Store page of the song and it only showed Britney's name. Now, I noticed that in every song of Britney Spears I have, "...featuring Madonna" is added after her name. I don't know what the **** is happening to my iPhone. Madonna only features in one song though. Should I restore my iPhone? Help pls!