Jessica Simpson has splashed out on new cars for her parents. The generous pop star bought dad Joe a top-of-the-line Maybach, while mom Tina has been handed the keys to a Porsche 911.

The total cost of the vehicles is reportedly $600,000.

The actress/pop star is making big bucks through her fashion lines. She is expanding her $1 billion booming fashion empire to include a new collection for trendy young teens, and she's recruited Ashlee's style guidance to better connect with customers.