Since we last heard news of new Jennifer Lopez material, she's been tweeting sneak peeks of who she's been in the studio with. First it was Future, and now she's revealed that Chris Brown is going to be featured on the forthcoming J.Lo LP.

Corey Rooney, the producer behind 'Jenny From the Block' (and the person who's standing to Lopez's right), joined in the tweet excitement, writing, "S--- got real serious up in here tonight…" and also alluding to some big things happening with this new album.

Who else do you think will be working with Jennifer Lopez? Tell us in the comments below.

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