T-ara's song hasn't been released yet... If you're referring to Skyground Starground, that wasn't their comeback song, it was just a song recorded for a cover album for a composer's 20th anniversary.
Looks like it was taken down: http://music.bugs.co.kr/newest/comingSoon/week?date=20101022
I guess it's still coming out around early November like we last heard.
[OFFICIAL] Eunjung in Co-ed's Bbiribbom Bbaeribbom MV (10/11) For the rest of the images: http://www.tiaradiadem.com/forums/gallery/album/653-co-ed-bbiribbom-bbaeribbom/ For the rest of the images: http://www.tiaradiadem.com/forums/gallery/album/653-co-ed-bbiribbom-bbaeribbom/ Download this Photo Set .ZIP: http://www.mediafire.com/?yi2zt3lqb7v6ddh CREDIT: nate + eric + tiaradiadem.com