Their single "Tell Me Why" ft. Hwa Young became a hit and topped online music charts[citation needed].

"[1] On February 9, Untouchable's "Living in the Heart" topped online music charts.

[6][7] They returned from military service on May 1, 2013 and took a break before making their music comeback at the end of the year.

On January 16, 2015, Untouchable released their 8th digital single album titled Cigarette & Liquor.

On September 14, 2019, it was announced that Sleepy left TS Entertainment via lawsuit, and the duo disbanded.