2AM's Jo Kwon congratulated Wonder Girls' Sun on her marriage plans.

Today, Jo Kwon posted on his twitter, "My lovely friend that I've spent the last 12 years with, Sun, is getting married! It feels a bit odd. I still can't believe it but I bet I'm going to cry a lot on her wedding day."

He also added, "Should I sing 'Can't Let You Go Even if I Die' at her wedding? I hope everyone supports and blesses her on her wedding^^"

Sun had revealed that she started dating a missionary in Haiti last November. She was surrounded by marriage rumors in September, but she denied it.

But today, Sun left a message on her fan website, saying she is getting married on January 26th.