Hawaiian Couple, a cheerful song by Korean electropop band Humming Urban Stereo, released in 2007. Pretty cute MV too…
The MV starred the main cast from Korean film My Love, i.e. Gam Woo-sung, Choi Kang-hee, Jung Il-woo, Lee Yeon-hee and Uhm Tae-woong. The song was probably used as one of the movie OST as well.
[video via laughinlover12@Youtube]