T-ARA N4 will begin their official album activities in the United States.

On May 20, T-ARA N4 held a press conference to share their brief 4-day trip to the United States last week upon Chris Brown's invitation.

"Some unexpected things happened. Through Dani, the new member to T-ARA, we were able to meet Chris Brown," Eun Jung said.

T-ARA N4 Attends Press Conference Regarding U.S. Activities and Promotions - May 20, 2013 [PHOTOS] 

She added, "Chris Brown was very accommodating. He prepared a limo for us as well as bodyguards. We talked with him a lot. As a token of thanks, we gave him a vase. He liked it. It looks like we'll be able to work with him in the future."

T-ARA N4's 'Country Diary' will be released in 5 new versions that include musicians Chris Brown, Snoop Dogg, Ray J, Wiz Khalifa, T-Pain.

T-ARA N4 will attend BET Awards on June 30 with Chris Brown. BET Awards is a prestigious American entertainment award ceremony.

About their abrupt move to the United States, T-ARA N4 stated, "This is a rare opportunity. Much of it is being done on the spot, very spontaneous. We will be making quick trips back and forth while doing all our previously determined schedules in Korea."

"Other members of T-ARA will be releasing an album in Japan as a spin-off group. They will reveal their music video next week. After that, we will release T-ARA's album."

Eun Jung concluded, "We will be true to ourselves wherever we go. We will work hard and show nothing but our very best."