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AllHipHop.com has an interview with Keri Hilson where she discusses producing a track for Yung Joc (it didn't make the album) and writing for Danity Kane ("Right Now" and "After Love", which ended up with Diddy and her singing on it).

AHHA: As an established writer, is it ever a complicated situation where you have to make a decision on whether to give a song to someone else or keep it for yourself?

Keri Hilson: I just kind of cross the bridge when I get there. If I�m in a booked session and summoned by the label or their artist, then I always have to give them first dibs. But if they don�t take it, I have the option to keep it for myself or sell it elsewhere. And of course I�ve sold songs that I would have kept for myself. One of them was �Right Now� for Danity Kane. [Also] �After Love� for Diddy. I actually wrote that for Danity Kane as well, but somehow it ended up in Diddy�s hands. So things happen like that, but it�s only because I�m always giving my best work. Of course I�m going to like something that I�m doing, because I write stuff I like all the time. But I�m in the business of doing both, so that�s what I do, and I don�t feel like my artistry is slighted at all. ...

Keri Hilson: I�ve gotten to work with [T.I.] on a couple of things. Like, he was getting into producing, and we worked on a couple songs together. One was for Young Joc. It didn�t make the album so we may be doing something else with it, but I got to spend a lot of time with him. ...