Wonder Girls will be appearing tonight at the Hard Rock Cafe in Times Square as special guests for 92.3 NOW's 'Ty Loves NY Monster Birthday Bash'.

Fans began to gather around the Hard Rock Cafe in Times Square for tonight's concert. Tonight's concert will be a good chance for those that missed them last month at the iHeartRadio performance. Here is a photo of the fans inside the venues ready to rock with the girls.

Wonder Girls began promoting in the U.S. in 2009 as they toured with the Jonas Brothers. They were the first South Korean group to make it on the U.S. Billboard 'Hot 100' chart at number 76 with their song, "Nobody."

The Wonder Girls also have albums out in China and Japan, making them a global sensation.

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Photo Credit: Twitter