'Luckiest' Benji Madden's sweetest message for wife Diaz's 43rd birthday

Calling himself "the luckiest guy alive," Benji Madden has sent a gushing happy birthday message to his wife Cameron Diaz, who turned 43 on August 30.

The 36-year-old musician took to his Instagram page to share an adorable selfie of the duo snuggled up to one another, along with a heartfelt message.

He wrote "Happy Birthday to my Beautiful Wife [heart emoji] My best friend and Everything else-there's so much I could write."

"I'm the luckiest guy alive-I get to spend the rest of my life right here. I love this woman!! Many more baby!!" the singer added.