What's up with the drama between Lil Kim and Nicki Minaj?

Can someone explain how it started and how it's going?

Did Nicki say something bad about Lil Kim?

Do you like Black Friday's songs?
Update: 4th answer. Black Friday is Lil Kims album and Nicki's album is Pink Friday lol. I know they have similar names. Thanks for the explanation though.
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