Jenny McCarthy shows off her hot bod and amazing abs on the January/February cover of Shape magazine. Check out some behind-the-scenes video from the photo shoot, where the 40-year-old blond bombshell reveals how she stays in such great shape. She even “singled out” her go-to exercises. Find out what they are! Plus, Katie Holmes celebrated her 34th birthday on Tuesday in NYC by having some mother-daughter bonding time with 6-year-old Suri, and while most of us are enduring the cold winter weather, Heidi Klum is having some fun in the sun. The 39-year-old supermodel tweeted a sexy snapshot of herself on a beach … topless!