"Download Selena's Ones (2002) as a rar file"
But if you are referring to it as a title of an album, it should be: Download Selena Ones(2002) rar
Or:
"Download Selena - Ones (2002) (rar)"
The proper article would be:
Or, in a more grammatically correct and formal tone: "Download Selena's Ones (2002) as a rar file"
"Download the rar file of Selena's Ones (2002)" Download Selena Ones(2002) rar