Actor Yeo Jin Goo, Tiffany Young, and Sunmi have teamed up with their unique new titles, a.k.a "planet masters" of Mnet's upcoming girl group survival program 'Girls Planet 999'!

In light of 'Girls Planet 999's premiere coming up next month, Yeo Jin Goo, Tiffany Young, and Sunmi have landed on the cover of '1st Look' magazine's special 10th anniversary edition. Viewers can look forward to how well this unlikely team of "planet masters" will lead the trainees of 'Girls Planet 999' on their rigorous survival journey, alongside various experts from the K-Pop scene. 

More of Yeo Jin Goo, Tiffany Young, and Sunmi's '1st Look' pictorial can be found in the magazine's upcoming August issue, out this July 22.