Girl group 2NE1's member Sandra Park revealed the flower garland sent to singer Psy's concert.

Today, Sandra Park posted on her Twitter, "Let's party hard tonight. I'm going to wear sneakers" along with a picture.

In the picture is a flower garland that 2NE1 members sent to Psy to congratulate him on his concert. The garland says, "Why are you the best. From gentle girls. 2NE1," referring to Psy's new song 'Gentleman' and their song 'I Am the Best.'

Psy held his concert 'Happening' today.

Photo Credit: Sandra Park Twitter, Mydaily