This week, Mnet America released a special documentary “Go! f(x)” on their YouTube channel.

The documentary followed the girls on their previous trip to the US when they performed at SXSW in Austin, Texas. We also get to see them prepare for their comeback during their visit to Los Angeles and also a behind the scenes look at their “Funny or Die” shoot with Hollywood actress Anna Kendrick. The f(x) members also got to spend some quality time with their friends and loved ones.

Go! f(x) will make its television premiere on July 31 at 7pm ET/PT.

f(x) recently released their comeback music video “Rum Pum Pum Pum.” Next month they will perform at KCON 2013 in Los Angeles.