I agree with whoever was saying that music can be incredibly non-complex, and still be fun and pleasant to some peoples ears.
Justin Timberlake is a MAINSTREAM POP ARTIST. more often than not, atleast in my experience in the last decade or so that i actually listened (which admittedly has not been enough in the last 2 years) mainstream pop meant to appeal to a huge group of people isn't mean to be/doesn't need to be exclusive. Theyre trying to make music that the widest range of people can get into. A large portion of the forumgoers here are into a much smaller niche of music, and the music made here caters to you. The music made by/made for Mr Timberlake reflects the audience he's trying to appeal to, and it does a good job at getting them and more.
some people like the pop genre of music, as well as others.
Not everyone needs a pi/7 time signature, 20 layers, 80 different chords to enjoy a song.