SEE ALSO: TASTY reveal they're actually Chinese

The duo thanked fans for their love and support on Twitter, "Happy 500 days ?? we love you twings...??," and "Happy TASTY's 500 days with twings!! ??," along with a selca of them celebrating the milestone with goody bags of food and a fan-made cake.

TASTY made their debut with 'Spectrum' under Woollim Entertainment back in August of 2012 and continued to showcase their twin connection when it comes to music, dance, and style through their latest comeback with "Day 'n Night".

Congrats, TASTY!