By Margeaux Watson
Updated December 01, 2008 at 12:00 PM EST

In case you missed it, here’s a quick look back at all the music news that caught my attention this weekend.

Diva vs. diva: Britney: For the Record premieres on MTV; Spears’ confessions upstaged by Madonna‘s scary face. Says one of my co-workers: “Dear god! The woman is like two acid peels away from Jocelyn Wildenstein!” Did you watch? Will For the Record help or hurt sales of Britney’s new Circus disc when it hits stores tomorrow? Vote in our poll, after the jump. –

F—— for tracks: Ex-call girl-cum-aspiring pop star Ashley Dupré, whose widely publicized trysts with former New York state governor Eliot Spitzer led to his resignation, signs with Violator Management; music career to be overseen by 50 Cent‘s manager, Chris Lighty. –
UPDATE: A rep for Chris Lighty has just issued the following statement: “Despite media reports, Chris Lighty and Violator Management do not represent Ashley Dupré. Lighty helped negotiate an interview for Dupre with Diane Sawyer, and has no further involvement in Dupre’s career.”

Now available on iTunes and Myspace:
Mos Def drops new single, “Life in Marvelous Times,” from his upcoming fourth solo CD, The Ecstatic, due out next year on Downtown Records. Hate it or love it? You tell me. – Myspace

Hipster meets hip-hop: A hot new Jay-Z track featuring Santogold has leaked online. It’s called “Brooklyn (Go Hard)” and it was produced by Kanye West for the soundtrack of the upcoming Biggie Smalls biopic, Notorious. Speaking of Hov, his wife, Beyonce, recently shot down the rumor that the power couple is joining forces for an upcoming tour with her sister Solange. “That’s a new one,” she told my colleague Carrie Bell at the Cadillac Records L.A. premiere last week. “I haven’t heard that before. There are no plans for me to tour with those two.” Anyway, check out Jay-Z’s new song below and let me know what you think.