She's been embroiled in a public feud with her husband Eddie Cibrian's ex-wife Brandi Glanville. And LeAnn Rimes' hands-on maternal approach with Brandi's son Jake is sure to rile up her nemesis further. The 30-year-old singer was seen placing a protective hand on her six-year-old stepson's back after his baseball game on Saturday in Los Angeles with Eddie, 39, while Brandi, 40, stood alone on the sidelines. Feeling good: LeAnn Rimes wore a cartoon 'Happiness' T-shirt at her stepson Jake's baseball game with husband Eddie Cibrian in Los Angeles on Saturday LeAnn appeared relaxed but in charge as she walked with her hand on the six-year-old boy's back as they walked to their car after the game. She cut a far healthier figure that in recent months as she showed off her curves in a black T-shirt emblazoned with the words 'Pow! Bam! Happiness' across the front, paired with baggy jeans folded at the ankle. The singer kep