AOA became the first female Asian models for Brush Buddies, one of the top oral care product companies in the United States.

Brush Buddies and the K-pop group recently released a new line of toothbrushes designed to make brushing entertaining and educational toothbrushes. The products feature the AOA members on the handles. The company also plans to release AOA singing toothbrushes as well as sonic toothbrushes. The singing toothbrushes will play AOA songs for 2 minutes, the recommended brushing time.

Brush Buddies has previously released products featuring popular global pop stars Justin Bieber and Lady Gaga.  "Gangnam Style" hitmaker Psy was the first Asian celebrity to earn his own brush with the company, and the AOA brushes are the first to feature a girl group from Asia.

"We wanted to work with a girl group with the potential to grow big in the next 10 years, and we decided AOA was perfect for us," said Brush Buddy Asia's CEO Lee Joon Yeol. "We saw their potential though their passion and humility. We chose Lady Gaga to represent Europe and the U.S, and AOA became the first female models to represent Asia."

AOA released their third mini album "Heart Attack" on June 22 and received praise from Billboard for their vocals and music video. The group also topped China's YinYueTai's V and Kuwo charts.