Paris Hilton is head over heels for Benji Madden.

"I've never felt so happy and in love, [Benji] is such an amazing guy and life has never been better!" she wrote on her MySpace blog Tuesday.

For the past month, Hilton has been accompanying Madden as he tours South Africa and Europe with his band Good Charlotte.

"It's so much fun going to their shows every night, I now know every song by heart," she wrote. "I love Good Charlotte, they rock!!"

Hilton, 27, and Madden, 28, first made their relationship public on February 21, smooching at Hollywood hot spot Villa.

Madden's twin brother, Joel, is dating Hilton's BFF Nicole Richie, who welcomed daughter Harlow in January.