Nicki Minaj keeps poking at the sore spot that is fellow 'American Idol' panelist Mariah Carey, this time by posing with rumored replacement judge Jennifer Lopez at last night's Met Gala.

Minaj's photo was originally titled with the shade-worthy and not work-friendly hashtag, "#notthatwegiveaf---butwheresM?"

M obviously being Mimi.

The caption was later changed to the far less combustible "chillin w/J.Lo."

Not sure why Minaj bothered with niceties -- it's hardly the first time she's used Lopez to mock Carey on Twitter.

Gee, we wonder why Carey wants to leave 'Idol' as soon as possible. (Not that she's completely blameless either -- she's just much more subtle about it.)

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