"Pick Me" is a song by contestants of Produce 101. It was released online as a digital single on December 17, 2015 by CJ E&M, along with a music video. It was unveiled for the first time on Episode 453 of M! Countdown that same day. The group was presented by Jang Keun-suk, and 98 out of 101 members showcased their talents through the song.

"Pick Me" is an electronic dance music song, composed and written by veteran composer under the pen name Midas-T.

The song was used in the South Korean legislative elections to elect members of the National Assembly.

...
Wikipedia