BAP Crash and be happy , Snsd gee gee, SuJu no other.

Stop It by BAP is hilarious (esp. the MV) so I highly recommend it.
Also there is:
Gee (SNSD)
Adore U (SEVENTEEN)
Mansae (SEVENTEEN)
Happiness (Red Velvet)
Um Oh Ah Yeh (Mamamoo)
Solo Day (B1A4)
Genie (SNSD)
LUV (APink)
Mr. Chu (APink)
NoNoNo (APink) (just look at any APink song in general they're all cute enough to make a bunny sick)
Love, LaLaLa (VIXX)

D&E's oppa oppa and can you feel it. For better results? Watch the Chok Chok dance;)

BAP - Be Happy (the title speaks for itself)
BAP - Feel So Good

This two BAP's songs is really good and catchy (:

gfriend - luv star
gfriend - me gustas tu
taeyeon - i
bts - i like it
bts - miss right
lovelyz - circle
chen & punch - everytime
bts - 24/7 = heaven
bts - blanket kick
gfriend - say my name
bts - look here
wendy & eric nam - spring love
yoona - Deoksugung Stonewall Walkway
clc - high heels
gfriend - someday
yuju & sunyoul - cherish
jimin & xiumin - call you bae
bts - good day
bts - so 4 more
bts - beautiful
got7 - fly
got7 - beggin on my knees
sorry for such a long list but they are all in my playlist XD

I would recomend you winner - don't flirt - I always smile when i listen to this song also Winner - Sentimental and F(x) Rainbow

Happiness by Super Junior. Haha the title already speaks for itself ^^
Man in Love by Infinite <3
Second Confession by BtoB
20 by Seventeen, too :)
(Lol those are my favorite boy groups haha)

Super Junior Happy subunit songs!!!

You got it, good friends, you and i, devil, confession, oops!, rockstar, snow white, super girl, boom boom, no other, bonamana, butterfly, sapphire blue, good person, love at first sight, swing by super junior.

Also like that sun snd freely by day6.

Too Many Beautiful Girls by Super Junior, I'm Jelly Baby by AOA Cream, most of SNSD's title tracks, Apink's songs, AYO by SHINee, MoMoMo by WJSN...hmmm yeah