Well, NU'EST W have done exactly that - taken out a subway ad to show their love to their fans! The placing is even more special because Pledis Entertainment made sure it was in the same place that JR's ad was during 'Produce 101' season 2.
Not only that, the boys individually got their own smaller banner ads as well. Aron's reads, "L.O.Ʌ.E and me" (parodying his infamous "oppa and me" line), Ren's reads, "I live every day happily in your love", Baekho's reads "My strength! My L.O.Ʌ.E! I love you", and JR's reads, "So L.O.Ʌ.E can shine."
What a lovely gesture!