SEE ALSO: INFINITE sweep album sales with 'INFINITE ONLY'

Toheart's Key and Woohyun showcased their perfect teamwork which can only come from such a strong friendship like they have as they performed title track "Delicious" and "Tell Me Why" from their first mini album. The duo also shared how they became friends through an exchange of phone numbers at a radio show and other funny behind-the-scenes stories.

Enjoy the showcase with your hosts INFINITE's Sunggyu and SHINee's Minho above!