Crayon Pop fans held a special event after Music Bank for the Crayon Pop members to celebrate their 1000 days since debut. This resulted in the Crayon Pop members thanking their fans on their personal Instagram accounts. It was held at Yeouido Park which is nearby to KBS. It wasn’t held on the 14th because it was raining that day. At 0:58, Choa sang “I love You” by 포지션 (Position).
Source: DCinside 1, DCinside 2