Benji Madden is expressing his love for new wife Cameron Diaz in a permanent way.

The former Good Charlotte rocker shared an Instagram selfie Monday of his wife's names tattooed on his chest, just below his collarbone. The tattoo, which reads "Cameron" in script, joins the number of tattoos the rockstar has printed on his body already.

"Thinking bout you❤❤❤ #LuckyMan," the musician captioned a photo of his tattoo, including the heart-shaped emojis.

Madden and Diaz said "I do" on Jan. 5 in an intimate ceremony at her Beverly Hills home after dating for less than a year and being engaged for less than a month.

"We couldn't be happier to begin our new journey together surrounded by our closest family and friends," the couple said in a statement to People Magazine. 

The ceremony had about 100 guests, including Madden's twin brother, Joel Madden, and wife, Nicole Richie, and actress Drew Barrymore, who served as bridesmaids. Guest also included pals Gwyneth Paltrow, Reese Witherspoon, producer Jeffrey Katzenberg and Barrymore's husband Will Kopelman.