I was wondering if Kim Choo-ja's version of 거짓말이야 might be on youtube and was surprised to find Oriental Lucy's version (uploaded by orienkorean).
I've seen Oriental Lucy live a few times now, and they always put on a good show. Below are some photos I took of shows on April 5 and April 26:
While I'm at it, here's the song Rorina Homestay:
You can also find 노란샤쓰 입은 사나이 (a Han Myung Sook cover) and Butterfly Kiss at youtube. The band's cyworld site is here, and if you feel like seeing them (or any other bands) live, have a look at the Korea Gig Guide.