Big Bang did GaraGaraGo, Let Me Hear Your Voice (Koe Wo Kikasete) and Fantastic Baby on Music Lovers.
More video below the cut:
Let Me Hear Your Voice
Great performance and I think the audience reaction made it even better.
Interview (upload and subs by bbvipchannel)
Thanks to bestkpopvideos for the uploads and to bbvipchannel for the subs!