If it has been more than 28 days since you've unlocked a complete data profile, you can choose to lock it and use the credit to access data on another artist โฌ๏ธ
Click on your name at the bottom left corner
Click on Artists (the column on the right indicates credit availability)
Click on the ๐๏ธ next to the artist you want to remove
To unlock a new artist, click on Unlock artist, and gain access to all the artist's data.