iTunes showing two artist when they are the same?

[Imola Ghost]

For some reason iTunes 11.0.1 is showing that I have two "Jane's Addiction" artists when they are the same.

I've imported all of the albums I have of theirs into Media Rage and looked for any different spelling errors and what not and everything is the same.

I'm baffled!

Ideas?

 

[Nermal]

(Note: Instructions are for iTunes 10 and may be slightly different in 11).

Select all the songs and do a Get Info. Where it lists "Artist" and "Album Artist" there will be little tick boxes. Tick both of them so that it forces a metadata update on all songs. Click OK and hopefully it'll merge them.