duplicate content

Hi!
I just added new content.
I created new page about Russian rock-band "Чайф"
http://lyricstranslate.com/en/%D1%87%D0%B0%D0%B9%D1%84-lyrics.html

Then, after quick search on LT, I realized that one song of this band is already added.
http://lyricstranslate.com/en/chayf-chaiv-lyrics.html

But this page doesn't contain any information about the artist and name Чайф is misspelled.

May be it will be better to delete duplicate content?