Sleepy 
Gok Ju
His name: Sleepy
Her name: Gok Ju
Where they met: introduced by Hong Jin Young at some friends gathering
What did he say: (while on I live alone) Lets get on WGM
What did she say: You are mad. kekekeke. 
What did they do? Join WGM (ep 349 - )
Other details:
his birth Name: Kim Sung Won
his birthday: February 21, 1984
his height: 189 cm
His job: rapper, member of the hip hop duo Untouchable, variety shows
her full name: Lee Guk Joo
her birthday: January 5, 1986
her height: 170 cm
Her job: comedian, variety shows, host of the radio show "Lee Guk Joo's Youngstreet"