Paris Hilton on Benji Madden: "He's such an amazing guy"

Paris Hilton has never been so in love.

"I've never felt so happy and in love, [Benji Madden] is such an amazing guy and life has never been better!" the socialite, 27, wrote on her MySpace blog Tuesday.

Hilton has been on tour with Benji -- and his band Good Charlotte -- for almost a month as they play arenas in South Africa and Europe -- and it's clear she's having the time of her life.

"It’s so much fun going to their shows every night, I now know every song by heart," she enthuses.

"I love Good Charlotte, they rock!! All the guys in the band are so cool and sweet and it’s been such an amazing and memorable experience."

And when she's not watching Good Charlotte perform, she has been busy, "checking out all your casting videos on the casting site for my new MTV show, www.ParisBFF.com, there are A LOT of fabulous and interesting contenders".

Hilton and Madden, 28, first made their relationship public on February 21, when they were seen making out at Hollywood hot spot Villa.

Madden's twin brother, Joel, is dating Hilton's best pal Nicole Richie, who gave birth to her first daughter, Harlow, in January.