AP - Jermaine Dupri wants to clear up some misconceptions. In an entry on his blog, the music producer says he and girlfriend Janet Jackson haven't split up — and she isn't pregnant. Dupri writes: "As you all know Janet is a very private person ... the only reason you see her as much as you do on my YouTube vlog is because of me. LOL. But I hear yall and your questions. ... No she is not pregnant and yes we're still together."More...