B.A.P - One Shot (extremely tiring... on a second thought, all B.A.P songs are tiring)
Wonder Girls - Like This (it's a pretty good workout for your legs)
F(x) - Electric Shock
Infinite - Paradise
Infinite - Be Mine
SHINee - Sherlock (out of all SHINee dances, this one seems the most fun x3)
SNSD - Gee (very simple and easy to learn)
Secret - Madonna
BtoB - WOW (not sure if there's a tutorial anywhere but the dance is definitely awesome)
Teen Top - Clap and Rocking
Ukiss - Man Man Ha Ni
Hyuna- Bubble Pop
EXO- Growl and Growl
Henry- Trap and 1-4-3
Kara- Step
APINK- No No No
                                                                                                              If you want a challenge; TVXQ - Catch Me x'D 
I dance this songs over and over again until my 6 hours is finish