The grand finale of Mnet's latest boy group performance competition program 'Kingdom: Legendary War' airs later tonight, on June 3 at 7:50 PM KST!

The final episode of the competition is expected to air live worldwide via YouTube and TVING, running for a total of 150 minutes. All six competing teams including BTOB, iKON, Stray Kids, The Boyz, SF9, and ATEEZ will be performing their special 'Kingdom: Legendary War' singles for the first time ever.

For the final round of the competition, fans all over the world will have a chance to cast real-time votes for their favorite idols to determine the ultimate winner, or the new "king" of K-Pop. Global fans will be able to cast their votes via the Whosfan app, while domestic fans can cast their votes via text messaging. As is tradition for real-time text messaging votes in a high-profile competition, some groups' fans have decided to launch jaw-dropping prize events to get as many people to vote for their favorite idols as possible!

Check out some of the expensive gifts that fans are giving out to those who vote for the following 'Kingdom: Legendary War' groups!

1. BTOB

2. iKON

3. Stray Kids

4. The Boyz

Will you be tuning in to the live finale of Mnet's 'Kingdom: Legendary War'?