California - Ashlee Simpson leaves a rehearsal in Studio City, California on July 7, 2009, looking fabulous in a white boho tank over flared jeans and a large pendant necklace.

She's very cute, and definitely a "one hot mamma"! The 24 year-old singer is currently busy with her new series "Melrose Place". By the way, I love the shades, and the necklace. It's very bubbly!

Photo Credit: RIV/Fame Pictures