Straight from the horse's mouth: Paris Hilton is the proud new owner of a GMC Yukon Hybrid, which she recently purchased as a 27th birthday present from herself to herself.

So does this also mean the heiress will soon be espousing the benefits of organic cotton and installing solar panels to provide energy to her Hollywood mansion? She has said she's made an effort to be greener by installing energy-efficient bulbs in her home. However she once also told Larry King that whe would give up her partying ways and start using her fame to do more for other people. That pledge was made last July after a stint in jail and as she has yet to show any evidence that she's actually following through on her promise, one probably shouldn't hold their breath waiting for a long-term lifestyle change. Given her penchance for changing love interests and pets every couple of months in favor of new ones (check out the monkey in the video clip below), there's likely a very good chance the environmental cause will also soon be passed over in favor of the latest, trendiest bandwagon.

» TMZ