8Eight previously revealed that they will be making a comeback with a new concept, and the teaser is finally revealed! 8Eight's teaser for their newest digital single Term of Validity/Availability Period (????) shows Joo Hee dancing provocatively. Unlike her rather mature and formal look of the last concept, she is showing her hidden sexy side. The short excerpt of the single does not sound so bad either! Their electronic sound added to their deep and melodious color is a perfect harmony, and a very new concept for these three powerful singers! Their company, Big Hit Entertainment said, "'Term of Validity/Availability Period' was supposed to be part of their mini album coming out on March 30th. However, we couldn't just ignore the song that emphasized 8Eight's unique style." 8Eight's digital single is set to be released on March 8th! And we can't wait to hear and see more of 8Eight's new concept!