When they write Kevin Federline’s biography, this week might go down as one of the worst ever for the rapper/dancer.

First, his wife Britney Spears filed for divorce Tuesday, requesting custody of the couple’s two children. Then, less than 24 hours later, Federline learned where his debut album, Playing With Fire, will open on the Billboard albums chart.

Despite months of promotion, Federline’s Fire cracks the Billboard top 200 at #151, with first-week sales reported at about 6,000. According to the latest SoundScan numbers, Playing With Fire is “one of 19 new releases to enter this latest sales chart and is the 16th-best-performing debut of the week.

But enough about K-Fed there are 199 other albums to discuss. There’s no change at #1, as the soundtrack to the Disney Channel original series “Hannah Montana” clings to the chart’s apex for a second week. Barry Manilow’s The Greatest Songs of the Sixties is the week’s best-selling debut, coming in at #2 with close to 202,000 scans. Like Father, Like Son, a collaborative offering from Birdman and Lil Wayne, opens at #3, with more than 176,000 units flying off store shelves.

Other notable newcomers to the chart include rapper Pitbull, whose latest, El Mariel, debuts at #17 with 48,000 units scanned. Lady Sovereign’s Public Warning opens at #48 with more than 18,000 sales reported, while Willie Nelson’s Songbird takes the chart’s #87 slot with 12,000 copies sold. Copeland’s Eat, Sleep, Repeat bows at #90 with sales of 11,000, while My Brother’s Blood Machine, the debut from Coheed and Cambria offshoot the Prize Fighter Inferno, fills the #119 spot with more than 8,000 units scanned, bagged and carried out of the nation’s record stores. And in at #192 with 5,000 copies sold is Beanie Sigel’s Still Public Enemy #1.