Credit: Jeff Vespa/

Married life sure agrees with Nicole Richie!

Days before she celebrates her two-month wedding anniversary with Joel Madden, the 29-year-old clothing designer jetted off to Europe to support her man as Good Charlotte kicks off their winter tour.

"This whole 'My last name is Madden' thing is really working for me here in Ireland!" Richie tweeted Friday. "I'm down, I'm down."

After a four year courtship, the couple exchanged vows at Lionel Richie's Beverly Hills estate in a winter-themed ceremony. Officiated by Run-DMC rapper and reality star Rev. Run, more than 150 family and friends -- including Samantha Ronson and Khloe Kardashian -- were on hand for the couple's big day.