2NE1's Sandara updated her twitter on 25th June.
She wrote," Woah Hyori unnie's signed CD, Hyori unnie isn't a bad girl but goo goo good girl! photo by CL".
Lee Hyori and Sandara are showing close friendship in the photo above, Sandara is seen holding Lee Hyori's latest album.
Fans commented,"I want the CD too","Sandara is a good girl too" and etc.