Despite his tumultuous past, rapper MC Mong entertained a sold out crowd during his September 4 concert. 

"MC Mong successfully held his first concert 'MONGSTER' in six years on September 4 at 8PM," said a statement from the star's agency, Dream T Entertainment, on Saturday.

The rap star performed all of the songs from his most recent album The Happiest Time Of My Life and as well as many of his past hit songs for the sold out crowd of 4,000.

"Can you be my Kim Tae Woo for the day?" asked MC Mong as he started singing his all-time favorite hit song "I LOVE U, OH THANK U." Since Kim was not available to feature the song, he had asked his fans to sing his part for him.

MC Mong's 'MONGSTER' concert series until September 13.