Mic On is the twelfth extended play (EP) by South Korean girl group Mamamoo.

The EP consists of three tracks, including the lead single "Illella".

", a "masterful" track incorporating electronic and hip-hop elements, with the group's vocals, it adds a smooth, jazzy texture that complements the vocals in the chorus.

[1] Followed with the title track "Illella", it opens with "bright" ad libs and "rich" vocals over a powerful reggaeton instrumental mixed with guitar riffs and "resounding percussion" in its arrangement.

is a nu-disco song, NME noted that the song is similar in its production to the group's single "Um Oh Ah Yeh".