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Jennifer Love Hewitt

Sharpshooter Images/Splash News

Blondes do have more fun!

Natural brunette Jennifer Love Hewitt —who is no stranger to changing up her hue—debuted some lighter locks over the weekend.

But is the 32-year-old actress pairing her new hair with an old flame?

It sure looks that way!

A source tells E! News exclusively that Hewitt has rekindled her romance with actor Jamie Kennedy. The Ghost Whisperer costars enjoyed a year-long romance that ended with a high-profile split in March 2010.

Late last year, Hewitt split with actor Jarod Einsohn. Fortunately for the star, her old beau was conveniently unattached as well.

"They are dating again," the source tells us, adding that the reunited couple has been enjoying sleepovers at Kennedy's L.A. condo.

Hewitt's Twitter feed certainly has been lovey-dovey the past month. She's retweeted Love Quotes and Megan Fox's parody Twitter account's uplifting messages about romance and choosing to "look beyond the imperfections" in order to be happy.

Hewitt's rep had no comment.

—Reporting by Ken Baker and Sharareh Drury