Producer: Janet Jackson not pregnant

NEW YORK -- 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."

Jackson and Dupri have been dating for about four years.

Dupri also writes: "It baffles me how yall let these blog and magazines control your lifes."

Jackson canceled a string of concerts on her Rock Witchu tour this fall because of a bout of migraine-associated vertigo, which is characterized by dizziness, imbalance and other symptoms.