NBC has identified "This is Nigeria" by falz as a Vulger song; see

The National Brocasting Cooperation NBC banned the song "THIS IS NIGERIA" By falz from being played on air by radio or TV stations,
On the letter dated 6th August 2017 NBC sent to a radio station that played the song on 1st August 2018, it clearly  noted that they also banned
"Iskaba" by wande coal
"See Mary See Jesus" by Olamide
"This Is Nigeria" by falz
As vulgar music.
This was posted by falz on his official instagram handle. Read the later below.

“This is Nigeria. Look how we living now, everybody be criminal” is apparently a vulgar line 😂🤣

A post shared by Falz TheBahdGuy (@falzthebahdguy) on Aug 9, 2018 at 8:28am PDT