Benji Madden posts romantic tribute to Cameron Diaz on his 47th birthday: 'I'm yours forever forever'

They've been married for years saying 'I do' with a winter wedding in January 2015.

And Benji Madden proved that his love for Cameron Diaz was stronger than ever when he took to Instagram to praises on his bride for her 47th birthday.

The Good Charlotte rocker shared a moody black-and-white snap of the couple watching the water on a boat trip to mark the occasion.

Love is in the air: Benji Madden proved that his love for Cameron Diaz was stronger than ever he took his Instagram to sing praises on his bride for her 47th birthday

'Happy Birthday to My Beautiful Wife,' he captioned the sweet snap. 'You deserve Everything Good that the Universe has to Give. I'm Yours Always Forever. '

He added a slew of heart emojis in his short post, and ended his musings with: 'Many More Baby.'

Cameron recently opened up on their marriage in a rare interview and called Benji, 40, 'the greatest human being'.

'I just want to build better, stronger friendships with the people who are in it with me. Of course, that includes my husband, 'she said. Getting married to him was the best thing that ever happened to me.

Blessed: They've been married for years after saying 'I do' with a winter wedding in January 2015; the couple were seen together in 2016

'My husband's the best. He's the greatest human being, and he's my great partner. Marriage is certainly hard, and it's a lot of work. You need somebody who's willing to do the work with you, because there's no 60-40 in marriage. It's 50-50 period. All the time. '

The Bad Teacher was not sure if she was 'ready' for marriage when they got hitched, but she always knew Benji was someone special.

'I do not know if I was ready [when I got married], but I knew Benji was special, 'she admitted. 'He's just a good man. There's no bulls ** t. It's really refreshing. I'm grateful for him. '

'My husband's the best,' Cameron recently said (seen in 2015.) 'He's the greatest human being, and he's my great partner. Marriage is certainly hard, and it's a lot of work

Cameron also insisted on her return to the spotlight after taking a short break from the bright lights of Hollywood.

'The way I look at it is that I've given more than half of my life to the public,' she said. 'I feel it's OK I want to come [back] into the world. If I decide to.

'I do not miss performing. Right now I'm looking at the landscape of wellness and all that. But whatever I do, it has to be something I'm passionate about – something that just feels effortless. '

Break: Cameron also insisted on a rush to return to the spotlight after taking a break from the bright lights of Hollywood; seen in 2015