Jessica Simpson is ready to give Sharon Osbourne's closet a makeover! The pregnant-again star -- who is in escrow to buy The Talk co-host's 11,000-square-foot mansion with fiance Eric Johnson -- has told pals Osbourne's huge walk-in closet will become Baby No. 2's nursery, a source reveals in the Feb. 18 issue of Us Weekly. The Hidden Hills, California, home was listed at $13 million.

"She's already met with designers!" a source tells Us of the Fashion Star mentor, already mom to daughter Maxwell, 9 months. Simpson, 32, and Johnson, 33, got engaged in November 2010 and have pushed back their wedding twice due to the singer's pregnancies.

For more details on Simpson's nursery plans, watch this week's Hot Stuff video, as explained by Us Weekly senior editor Ian Drew and special guest, Lisa Loeb!

Also in the roundup: Adam Brody and Leighton Meester are secretly dating; Leonardo DiCaprio hosts a guys' weekend in Miami with Bradley Cooper, Jonah Hill and Gerard Butler; and much more!