A song by iKON titled "U" has been reviewed. However, it is unclear if the review is specifically about the song "U" by iKON as a group, or if it is related to a song by a member of iKON, as there are reviews of songs by individual iKON members, including Bobby and DK. The song "U" is also mentioned alongside reviews of other k-pop groups and artists, including a ranking of final singles from a competition called Kingdom.