Ahead of United Cube's family concert on August 14th, Cube Entertainment artists B2ST, 4minute and G.NA gave fans a sneak peek of what to expect with an exclusive special stage performance of their family song, "Fly So High" on today's SBS's Inkigayo! "Fly So High" is a collaboration track featuring the afore-mentioned twelve Cube Entertainment family members, now known as 'U-Cube'. It's an upbeat and addictive song that harmonizes the artists' unique talents to create the perfect feel-good summer track. While the song was in its production stages, the U-Cube family members were honest with one another, offering their experience and expertise to help each other refine their talents, as they worked more earnestly on this track than any of their previous projects. This is a pretty unusual move by Cube especially as they are revealing it for the 1st time on television instead of at their concert. Regardless, the fans are certainly not complaining for sure. Also included are their sizzling short individual performances, so check them out below! * The above are just a sneak preview for fans who are going or not going, of what's going to take place at their family concert a week later. So don't gripe that they are short.