Who is Britney's Baby Daddy?

According to In Touch, Heeb hip-hop producer J.R. Rotem is slated to be the next father of a child Britney Spears will no doubt eventually lose custody of. Radar has actually been keeping tabs on Rotem since he first started diddling Spears more than a year ago. (Truth told, we're shocked this didn't happen earlier. Rotem, it seems, has the tacky bravado of serial Spears impregnator Kevin Federline, but not super sperm).

What else do we know about the new father-to-be? He was a jazz-composition major at the Berklee College of Music, for starters. Sophisticated! After the jump, more Rotem tidbits, per our September 2006 issue of Radar.