SHINee's Taemin and EXO's Kai are great friends and will show their remarkable relationahsip on the August 21st episode of 'M! Countdown,' according to reports.

Taemin is set to perform his third single "Pretty Boy"  during the upcoming episode alongside Kai. There is a lot to love about this song that blends electronic and swing tempos with Kai's sharp voice and Taemin's soft tone.

Taemin will also perform his main single titled, "Danger" during the taped music show and will showcase his smooth moves and wow the audience with his handsome features.

This will not the first time that Taemin and Kai have performed together. Both idols sang and danced together at the 'SMTOWN Live World Tour IV' on August 15th at the Seoul World Cup Stadium - a label concert which included performances from various SM artists.

Taemin and Kai each explained their friendship on the August 19th episode of Mnet's '4 Things Show.' Kai stated, "We are all really compatible. Really compatible. We don't like to drink. We play in a very soundly way. We play soundly but also have a lot of fun."

In terms of skinship (touching each other) between himself and Kai. Taemin said, "I don't hold hands or anything with Kai, but we do skinship like putting our arms around each other's shoulders."  During a taping of 'Kim Chang Ryul's Old School' radio program on the same day, he explained, "We have another friend, who is a bit severe when it comes to skinship. It rubbed off on us. We hated it at first, but we naturally came to do skinship."  

Taemin and Kai were also on the August 17th episode of 'Running Man' and reportedly had a "great time."

VIXX member Ravi also appeared on the '4 Things Show' and explained his friendship with both Kai and Taemin. Ravi said, "At first, I was close to Kai. Kai always knew Taemin for a long time; they were close since they were young. As a result, the three of us naturally became close." After Ravi, Taemin said, "When the three of us meet up, we either go to a cafe or just talk. We do a lot of really fun things."

Take a listen of "Pretty Boy" before Taemin and Kai perform on the upcoming episode of 'M! Countdown' this Thursday.