2NE1's Sandara Park cheered on her brother, MBLAQ's Thunder, as they prepared for their first solo concert. Five-member idol group MBLAQ held their first concert performance, 'Men in MBLAQ' on August 20th at 5:00PM KST at Seoul's Jamsil Indoor Stadium. On August 20th at 1:00PM, Sandara posted via her me2day, "Today is Thunder & MBLAQ's first independent concert! Chyeah! I'm so excited and also completely nervous!" She continued, "Our own concert is only 6 days away! I came here at 12:00 to practice for our performance. Check out my cute Sandara T-shirt! ^0^" and attached the above photo. 2NE1 is also holding their very own solo concert from August 26th through the 28th at Seoul's Olympic Stadium. StarNews via Nate