Idol group�MBLAQ recently snapped a photo with their mentor,�Rain, and expressed their gratitude for all his efforts. On July 13th, the idol group tweeted, "Hyung! Thank you again today," and attached a picture they snapped with the 'world star' singer. It seems like the shot was taken during a rehearsal session. The boys surround their teacher, who rocks a hat saying 'Bi-neunim', a phrase that combines�'Bi' (or 'Rain') with 'Haneunim' (the word for God in Korean). Fans said, "Bi-neunim seems like an idol", "You all look like on group", and "This is a good picture". Source: Star News via Nate